# Adding and subtracking fractions....help PLEASE!!!?

1. 8-2 2/3 (eight minus two and two thirds)

2. 8 2/3-2 (eight and two thirds, minus two)

3. 2 7/16 PLUS 4/8 (two and seven sixteenths, plus four eighths)

4. 1 4/5 PLUS 1 5/6 PLUS 1 3/4 (one and four fiths, plus, one and five sixths, plus, one and three fourths)

Please show me how you did it.

And the answer.

I want to understand it....better....and if you have an easy way of doing it...that would work 2!!!

thankyou to all!!!

PLEASE SHOW HOW U DID IT!!! i want to learn 2!!!

### 7 Answers

- kisk29Lv 41 decade agoFavorite Answer
1. 8-2 2/3

8/8-8/3

24/24-64/24

-40/24

-1 2/3

2. 8 2/3-2

26/3-2/2

52/6-6/6

46/6

7 2/3

3. 7/16+4/8

7/16+8/16

15/16

4.1 4/5+1 3/4

9/5+7/4

36/20+35/20

71/20

- Login to reply the answers

- hayharbrLv 71 decade ago
No really easy way. Just remember when subtracting the top fraction must be higher than the bottom, if not you borrow 1 from the whole number in the form of denominator over denominator, like this:

: 8 0/3

-2 2/3

borrow 1 from the 8 in the form of 3/3 making it

7 3/3

-2 2/3

Then subtract the numbers in front, and the numerators only:

5 1/3

8 2/3

-2 0/3 no need to borrow, top is bigger, just subtract

6 2/3

If the denominators are different you must change to equivalent fractions with the same denominator; like in

2 7/16

+ 4/8 which if you multiply top & bottom by 2 is 8/16

2 7/16

+ 8/16

2 15/16

1 4/5

1 5/6

1 3/4 have a common denominator of 60 so multiply by 12/12, 10/10, and 15/15 in that order

1 48/60

1 50/60

1 45/60

3 143/60 which reduces to 5 23/60

good luck

- Login to reply the answers

- hollyltstarfleetLv 41 decade ago
1) 8 OK You have no fraction next to the 8, so lets

- 2 2/3 make one.

_______ 8 0/3

- 2 2/3

___________

You can't take 2 from 0, so you go to the 8, borrow 1 and make it a 7. The 1 you borrowed turns into 3/3.

Now we have, 73/3

- 22/3

___________Answer= 5 1/3

2) 82/3-2 = 8-2=6, bring down the 2/3, the answer is 6 2/3

3)2 7/16

+ 4/8 Find the least common denominator which is 16.

2 7/16

8/16 = 2 and 15/16

4) On this one find the lcd of 5,6,4 , add the new numerators, then add the whole numbers.

I hope this helps, it would be easier to do this with a piece of paper and a pencil!!!! ):

- Login to reply the answers

- Anonymous1 decade ago
8- 2 2/3

1 = 3/3

8-2=6

6-2/3 = 5 1/3

8 2/3 - 2

=6 2/3

(5/5=1) 1 4/5 =9/5 + 1 3/4 (4/4=1)

9/5+7/4

find a common denominator in thsi case is 20

multiply 9 by 4 because you multiplied 5 by 4 to get 20 and for the others you get

36/20 +28/20 = 64/20 (mixed number)

now gimme 10 points

- Login to reply the answers

- How do you think about the answers? You can sign in to vote the answer.
- Anonymous1 decade ago
1. 2.5

2. 4

3. 5.7

4.7.8

- Login to reply the answers