Actions with fractions!

12/12/2019

30 Comments

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1)MATH:

Complete the adding and subtracting fractions handout
Mark the first page with this answer key (PAGE 1) (PAGE 2) Please note that the answer key does not have the fractions in lowest terms:(
You do not need to mark the 2nd page. We will go over it on class tomorrow

2) SOCIALS/INQUIRY:

Complete your inquiry presentations by tomorrow so you can improve it over the weekend. Follow your Going Public Criteria closely.

3)WORD WORK:

Test tomorrow

4)POST A RESPONSE:

Watch this video on how to multiply and divide fractions (click)
Explain how to add, subtract, multiply and divide standard fractions (include an example and explanation for each rule below)
Copy and paste the template below and then fill it in with your own words

THE RULES FOR OPERATIONS WITH FRACTIONS:

1) To add fractions you........an example is 1/3 + 2/4 = (explain what you do here)
2) To subtract fractions you......an example is 2/3 - 1/2 = (explain what you do here)
3) To multiply fractions you......an example is 4/5 x 2/7 = (explain what you do here)
4) To divide fractions you......an example is 4/5 divided by 1/2 = (explain what you do here)

VIDEO LINK
multiplying and dividing fractions

30 Comments

Edmond

12/12/2019 05:10:15 pm

FIRST!!!!

12/12/2019 05:47:16 pm

YAY TOP FIVE!!!

12/12/2019 05:52:58 pm

I mean TOP THREE!!!

12/12/2019 07:47:07 pm

top 1

12/12/2019 09:56:05 pm

@Colin, you were quite right.

Sabrina

12/12/2019 05:23:25 pm

2nd!

Maxwell

12/12/2019 05:23:48 pm

3rd

12/12/2019 05:42:16 pm

12/12/2019 06:03:21 pm

1) To add fractions you change the denominator until both numbers share the same denominator. Then, you can add the numerators. An example is 1/3 + 2/4 = 4/12 + 6/12 = 10/12 = 5/6.
2) To subtract fractions you also change the denominator until the two numbers share the same denominator, then you can subtract the numerator. An example is 2/3 - 1/2 = 4/6-3/6=1/6.
3) To multiply fractions you can multiply the numerator with only the other numerator, and the denominator with only the other denominator. An example is 4/5 x 2/7 = 8/35.
4) To divide fractions you flip the second number around, and then you multiply the new fractions. an example is 4/5 divided by 1/2 = 4/5 x2/1 = 8/5.

12/12/2019 06:03:44 pm

Koby

12/12/2019 06:10:33 pm

to add or subtract a fraction you must make sure the denominators are the same.

1. To add a fraction like 3/5+2/10, 5 times 2 is 10 and 3 times 2 is 6 so 6/10+2/10= 8/10.

2. To subtract a fraction like 10/20-30/40, First make the denominators the same like in adding so, 20 times 2 =40 and 10 times 2 = 20 so, 20/40-30/40=10/40.

3. To multiply a fraction like 3/2 times 4/9 you just multiply the numbers so 3 times 4 =12 and 2 times 9 =18 so 12/18, now simplify it divide 12 by 6 =2 and divide 18 by 6= 3, 2/3 is the simplified answer.

4. To divide a fraction like 1/4 divided by 2/6 first flip the second fraction, 6/2 then multiply it by 1/4, 1 times 6 = 6 and 4 times 2 =8, now I have 6/8. To simplify it again divide them by 2 so 6 divided by 2 is 3 and 8 divided by 2 is 4 so 3/4 is my simplified answer.

Abdul

12/12/2019 06:57:37 pm

@Everyone, could someone please clarify when inquiry is due because people are telling me Friday and others Wednesday. I just please need someone to tell me.

Mr. Fisher

12/12/2019 07:20:35 pm

@ Abdul-You need to be Ready to Present on Monday, so you must be pretty much complete by Friday so you can practice and fine tune the presentation on the weekend.

12/12/2019 07:42:05 pm

Oh okay thanks @Mr. Fisher

12/12/2019 07:49:11 pm

1) To add fractions you find a common denominator (LCM) for the denomy.An example is 1/3 + 2/4 = First, you find the lowest common multiple (LCM) for 3 and 4 since they're the denomy's. The LCM for 3 and 4 is 12 so that's now your denomy. Once you have found your denomy, you multiply the numy with the number that makes the denomy. For example 1/3, to get to 12 from 3 you have to multiply 3x4. so it would be 4/3 since 1x4, next you ,multiply 3x2 which equeals 6. So now you have 4+6 which is 10, and your final answer is 10/12.

To subtract fractions you do the same steps as adding fractions except your subtracting. So find the LCM for the denominators.an example is 2/3 - 1/2 = 7/6. I know this because the LCM is 6, so to get to 6 from 2 you multiply 2 and 2 because 2 is also the numy, this equals to 4/6 then you do the same with the next fraction, you get 7/6 after doing the math and that's your answer. You can also simplify this fraction into a mixed fraction because it is improper so your final answer should be 1 1/6. (mixed fraction)

3) To multiply fractions you put the 2 fractions then a multiplication sign.an example is 4/5 x 2/7 = First do what I just said before, then you multiply by simplifying if the fractions are equivalent. Then you simply multiply both denomy's and numy's.

4) To divide fractions you do exactly what you would do to multiply a fraction except you just flip the second fraction.

12/12/2019 08:31:40 pm

1) To add fractions you need to make both fraction have the same denominator, and after multiply the numerators as many time as the denominator, and than u just add the top up and boom u got the anwer. If the anwer is a mix number you just cchange the numerator lower than the denominator, if its both a Even number juat devide to as low as possible. example is 1/3 + 2/4 = first 1/3 change to 4/12, 2/4 change to 6/12 and add them up, the anwers is 10/12. Now you just devide it to as low as possible 5/6

2) To subtract fractions you do the same as adding but u only subtract at the end. an example is 2/3 - 1/2 = 2/3 change to 4/6 1/2 change to 3/6 and u subtract it and the anwer is 1/6
3) To multiply fractions you just do the same thing at first, after u get the sam denominator you multiply the top and there is the anwer. an example is 4/5 x 2/7 = 4/5 change to 28/35 2/7 change to 10/35 and than u time the top and theres the anwer.
4) To divide fractions you u flip the second fraction and see if any one can be cut out. the anwer is 1 3/5

Emily K

12/12/2019 08:36:21 pm

@DY
How did you get these answers? If I didn't know how to divide, multiply, add or subtract, this wouldn't help me very much. Maybe try adding how you got that answer. SHOW ALL YOUR WORK! Also, make sure that you use words, what I mean by this is that I saw you used "u" a lot. You should use the word "you" instead. Otherwise, good explaining and nice paragraphs.

12/12/2019 08:33:47 pm

To add fractions you put the denominator in lowest terms. You then multiply the numerator by the other fraction's denominator. You should now have two complete fractions with the same denominator. You now add the numerators together but keep the denominator the same! The complete fraction is your added fraction. Here is an example: 1/3 + 2/4. Lowest terms: 1/3- 4/12 and 2/4- 6/12 Now we have to separate fractions with the same denominator. If I add the numerators together, it becomes 10/12 which is the answer to the question.
To subtract fractions you put the fractions into lowest terms and multiply the numerator by the other fraction's denominator. You then subtract the numerator by the other numerator and you have your answer. For example: 2/3 - 1/2. Lowest terms: 2/3-4/6 and 1/2-3/6. After I subtract 4/6 by 3/6, I get 1/6 which is the answer to the problem.
To multiply fractions, you multiple the numerators and the denominators together. Once you get your answer, you see if you can make it any lower by putting it into lowest terms. If it can't get any smaller, you have your answer but, if it isn't into lowest terms, you divide it into lowest terms. You then have your answer. For example: 4/5 x 2/7 Multiply the numerators and the denominators- 4x2/2x7- 6/14, this fraction can get smaller by dividing the numerator and denominator by 2. The new fraction is 3/7.
To divide fractions, you take the first fraction (keep it the same) but, flip the second fraction (flip numerator and denominator). You then times the new numerators and denominators by each other. Once you have your answer, you put it into lowest terms (if possible) and you should have your answer. For example: 4/5 divided by 1/2. So now I have 4/5 and 2/1. I multiply the numerators and denominators together and I get: 8/5. This is the lowest the fraction can get so, this is my answer.

Emma

12/12/2019 09:13:52 pm

1.To add fraction you need to find the common denominator. The common denominator of 1/3 and 2/4 is 12. Change 1/3 to 4/12 and change 2/4 to 6/12. Then add 4/12 and 6/12, the sum is 10/12. Last you need to change 10/12 to the lowest term. So 1/3 + 2/4 = 5/6.
2.To subtract fraction you need to find the denominator. The denominator of 2/3 and 1/2 is 6. Change 2/3 to 4/6 and 1/2 to 3/6. 4/6 minus 3/6 is 1/6, 1/6 is the lowest term.
3.To multiply fraction like 4/5 and 2/7 you need to use 4 multiply 2 and 5 multiply 7. 4 multiply 2 equal 8, 5 multiply 7 equal 35 so 4/5 multiply 2/7 equal 8/35. 8/35 is the lowest term.
To divided fraction you need to flip the second fraction. To calculated 4/5 divided by 1/2 you need flip 1/2, so is 4/5 multiply 2 equal 5/8.

Longman

12/12/2019 09:15:28 pm

1/3 + 2/4 = (explain what you do here)
2/3 - 1/2 = (explain what you do here)
4/5 x 2/7 = (explain what you do here)
4/5 divided by 1/2 = (explain what you do here)
to add fractions you just change both denominator to the same number, for example 1/3 + 2/4 3 and 4 's LCM is 12 so 4/12 + 6/12
when added together it's 10/12 and when simplified 5/6 Taking away fractions is the same but you just take away. For example 2/3 - 1/3 for this one the denominator is already the same so you just take away 1/3 from 2/3 which is 1/3. To multiple fractions you just multiple the numbers together for example. 4/5 x 2/7 2 x 4 = 8 and 5 x 7 = 35 so it's 8/35/ Now lastly for dividing fractions to divide fractions you flip the second fractions over and multiple. For example 4/5 and 1/2 1/2 becomes 2/1. 4/5 x 2/1 = 8/5 which made into a mixed fraction is 1 3/5.

12/12/2019 09:31:35 pm

Rules for Operations with Fractions

1) Adding Fractions
To add fractions, you first need to find the lowest common multiple for the denominators. So an example is 1/3 + 2/4. You need to find the LCM for 3 and 4 which is 12. You need to multiply 3 by 4 to get 12 and 4 by 3 to get 12. Whatever you do to the bottom part of the fraction you have to do to the top. So for 1/3, 3 times 4 is 12 (denominator), 1 times 4 is 4 (numerator) so this fraction has been converted to 4/12. Now we have to do the other fraction. For 2/4, 4 times 3 is 12 (denominator), 2 times 3 is 6 (numerator) so this fraction has been converted to 6/12. Next we need to add them so 4/12 + 6/12. We only need to add the numerator so remember to keep the denominator the same! 6 + 4 = 10. So the answer is 10/12 but we need to simplify! So they are both divisible by 2 so 10 divided by 2 is 5 and 12 divided by 2 is 6. So the final answer is 1/3 + 2/4 = 10/12 = 5/6.

2) Subtracting Fractions
To subtract fractions you first need to find the lowest common multiple for the denominators like when you add fractions. So an example is 2/3 - 1/2. You need to find the LCM for 2 and 3 which is 6. You need to multiply 3 by 2 to get 6 and 2 by 3 to get 6. Again, whatever you do to the bottom part of the fraction you have to do to the top. So for 2/3, 3 times 2 is 6 (denominator), 2 times 2 is 4 (numerator) so this fraction has been converted to 4/6. Now we have to do the other fraction. For 1/2, 2 times 3 is 6 (denominator), 1 times 3 is 3 (numerator) so this fraction has been converted to 3/6. Next we need to subtract them so 4/6 - 3/6. We only need to subtract the numerator so remember to keep the denominator the same! 4 - 3 = 1. So the final answer is ⅔ - ½ = ⅙.

3) Multiplying Fractions
To multiply fractions there are 2 ways. You can either cancel out first or you can simplify it after you multiply. So an example is 4/5 x 2/7. I’m only going to show you how to simplify it after. So you just have to multiply the numerators and the denominators together. So it would be 4 times 2 for the numerator and then 5 times 7 for the denominator. It would = 8/35. There is nothing to cancel out or simplify because the fraction is in lowest terms. So the final answer is 4/5 x 2/7 = 8/35.

4) Dividing Fractions
To divide fractions there are also 2 ways but I’m just going to show you how to simplify after. If you wanted to know what the two ways are they are canceling out first or simplifying after. So an example is 4/5 divided by ½. It is basically the same as multiplying fractions but the first step is different. You first have to flip the reciprocal of the one that is being divided. So what you would do is ½ is being divided and so you flip it. It would become 2/1. Then you just multiply the numerators and the denominators together. So it would be 4 times 2 for the numerator and then 5 times 1 for the denominator. It would = 8/5. Now I normally like to make it a mixed number so it would be 1 ⅗. So the final answer is 4/5 divided by ½ = 1⅗.

This is how you add, subtract, multiply and divide fractions.

12/12/2019 09:54:31 pm

1) To add fractions you you would need to change both denominators to be the same. Then, you add the numerators. After that, you put the result into lowest terms. An example is 1/3 + 2/4 = 4/12 + 6/12 = 10/12 , lowest terms = 5/6.

2) To subtract fractions you would also need to change the denominators until they are the same. Then, you can subtract the numerators and put it into lowest terms. An example is 2/3 - 1/2 = 4/6 - 3/6 = 1/6.

3) To multiply fractions you would first multiply the numerators of the fractions to get the new numerators. Then, multiply the denominators of the fractions to get the new denominators. Finally, you simplify the fractions to lowest terms. An example is 4/5 x 2/7 = 8/35.

4) To divide fractions you first leave the first fraction alone, then you flip the second fraction over and turn the division into multiplication. After that, you multiply the numerators of the two fractions. Next, you multiply the denominators of the two fractions together. Finally, you put the result into lowest terms. An example is 4/5 divided by 1/2 = 4/5 x 2/1 = 8/5 = 1 and 3/5.

Krystelle

12/12/2019 10:03:36 pm

To add fractions you first have to make both the denominators the same. Let's say for example you have 1/3 + 2/4. This will then be 4/12 + 6/12 = 10/12. Simplified version - 5/6.

To subtract fractions make the denominators the same like you did for adding fractions. For example you have 2/3 - 1/2. This will then be 4/6 - 3/6 = 1/6.

To multiply fractions you need to multiply the numerator with the other numerator and the denominator with the other denominator. For example you have 4/5 x 2/7. 4/5 x 2/7 = 8/35.

To divide fractions you have to flip the second fraction then you multiply them together. For example 4/5 divided by 1/2. This will then be 4/5 x 2/1 = 8/5.

Claire

12/12/2019 10:05:56 pm

1) To add fractions you must find the common denominator and add the numerators. An example is 1/3 + 2/4 = 4/12 + 6/12. Then you would add the numerators (4 + 6) to get 10/12 = 5/6
2) To subtract fractions you have to find the common denominator like adding but you have to subtract one numerator to the other instead. An example is 2/3 - 1/2 = 4/6 - 3/6 which would equal 1/6.
3) To multiply fractions you multiply the numerators first and then the denominators. An example is 4/5 x 2/7 = 4 times 2 over 5 times 7 which would equal to 8/35.
4) To divide fractions you do the same thing as multiplication but you flip one of the fractions. An example is 4/5 divided by 1/2 = 4 times 2 over 5 times 1 which would equal to 8 over 5.

Hem

12/12/2019 10:10:58 pm

1. To add fractions, you first have to make both the denominators the same. For example, you have 1/3 + 2/4 = 4/12 + 6/12 which is 10/12. If you simplify, it will be 5/6

2. To subtract fractions, first, make the denominators same. For example, you have 2/3 - 1/2 = 4/6 - 3/6 = 1/6. This number is already in its lowest form so we do not need to simplify.

3. Multiplying fractions is just straight forward. You just multiply the numerator to the other numerator and the denominator to the other denominator. For example, you have 4/5 x 2/7 = 8/35. Again, this is already in its lowest form so we do not need to simplify.

4. To divide fractions, you first have to make the second fraction inverse, then you multiply them together. For example, you have 4/5 divided by 1/2 = 4/5 x 2/1 = 8/5. 8/5 is already in its lowest terms so we do not need to simplify.

Jack

12/12/2019 10:42:32 pm

1) To add fractions you would find the lowest common multiple for each denominator and you would convert the fraction so it's denominator would be that. The you add both fractions together and you get your answer. An example is 1/3 + 2/4 = ?. First, find 3 and 4's LCM which is 12. 3x4=12 so you would do 1x4. 4x3=12 so you would do 2x3. Now you have 4/12 and 6/12. When you add these you get 10/12. Simplify that and you get 5/6 which is your answer.

2) To subtract fractions you would find the lowest common multiple for each denominator and you would convert the fraction so it's denominator would be that. Then, you subtract the fraction from t he other and you get your answer. An example is 2/3 - 1/2 =?. The LCM is 6 so 2/3 becomes 4/6 and 1/2 becomes 3/6. 4/6-3/6=1/6 and that's your answer.

3) To multiply fractions you would multiply the numerator to numerator and denominator to denominator. An example is 4/5 x 2/7 =?. You would do 4x2 and 5x7. Your answer would be 8/35.

4) To divide fractions you would keep one of the fractions the same and flip the other one. THen you multiply it. An example is 4/5 divided by 1/2 =?. 4/5x 2/1 because we flipped one. That would be 8/5. This would be your answer unless you simplify it which is 1/3/5.

Ruby

12/12/2019 11:11:44 pm

1) To add fractions you need to change the denominator so that both are the exact same by finding a common multiple and multiplying the numerator by the same number you multiplied the denominator with. An example is 1/3 + 2/4 . A common multiple of 3 and 4 is 12. So you multiply 3 by 4 to get twelve and 4 by 3 to get twelve. Since you multiplied 1/3's denominator by 4, you must also multiply the numerator (1) by 4 too and since you also multiplied 2/4's denominator by 3, you must also multiply the numerator (2) by 3 too. Now you have 4/12 + 6/12. All you have to do is add the 4 and the 6 together which equals 10/12.

2) To subtract fractions you need to change the denominator so that both are the exact same by finding a common multiple and multiplying the numerator by the same number you multiplied the denominator with. An example is 2/3 - 1/2. A common multiple of 3 and 2 is 6. So you multiply 3 by 2 to get six and 2 by 3 to get six. Since you multiplied 2/3's denominator by 2, you must also multiply the numerator (2) by 2 too and since you also multiplied 1/2's denominator by 3, you must also multiply the numerator (2) by 3 too. Now you have 4/6 - 3/6. All you have to do is subtract the 3 from the 4 which equals 1/6.

3) To multiply fractions you need to multiply the numerator by the other fraction's numerator and multiply the denominator by the other fraction's denominator. An example is 4/5 x 2/7. You just multiply the 4 by 2 and the 5 by 7 so you get 8/35.

4) To divide fractions you just need to keep one of the original fractions and then flip the other one's denominator and numerator around then multiply the fractions. An example is 4/5 divided by 1/2. You would flip the 1/2 so that it's 2/1 and then multiply 4/5 by 2/1 and you would get 8/5.

12/13/2019 08:06:35 am

Mr. fisher, i did not bring home my fraction booklet so i am sorry but i can not mark it

12/14/2019 01:07:25 pm

@Anyone
When will the website be updated?

12/14/2019 01:17:55 pm

Idk

Actions with fractions!

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