Posted by **marko ** on Wednesday, December 21, 2011 at 6:05pm.

Can you check my answers:

2) 5/8 - 1/4

i got: 3/8

4) 1 1/2 - 2 4/5

i got: 7/10

6) 5 7/8 + 3 5/12

i got: 9 7/24

10) 3 1/2 + 2 2/5

i got: 5 9/10

18) 6 7/12 + 4 5/12

i got: 11

20) 7 9/10 + 3 3/10

i got: 11 1/5

22) 18 3/8 + 11 6/7

i got: 30 13/56

24) 26 9/10 + 72 5/6

i got: 99 11/15

26) 3/14 + 17/63

i got: 61/126

28) 2 5/6 - 2 5/22

i got: 20/33

30) 3 5/9 - 2 11/12

i got: 23/36

are these right?

- Math add subtract fractions -
**Reiny**, Wednesday, December 21, 2011 at 7:22pm
all correct except #4

1 1/2 - 2 4/5

= 3/2 - 14/5

= 15/10 - 28/10

= -13/10 or -1 3/10

If you have a scientific calculator with a key labeled

a b/c , you can perform calculations in fraction form

It will do the required operation such as addition by taking care of finding lowest common denominators etc.

It does of course not show any in-between steps.

e.g. to do 1/2 + 2/3

press:

1

a b/c

2 +

2

a b/c

3

=

to get 1 1/6

if at this point you press

2ndF

a b/c

you will get 7/6 , the improper function

to enter a mixed number like 5 3/4

press:

5

a b/c

3

a b/c

4

Use it only to check your answer, since your teacher will probably insist that you show all steps.

## Answer this Question

## Related Questions

- mAth EQUATION/FRACTIONS - Solving equations with fractions can you check these? ...
- math estimating w/fractions - can you check my answers: estimate w/mixednumbers...
- math - Jen, I will attempt to write the others out. #3)ADD: -57 + (-22) I got -...
- MaTh fractions add subtract - having trouble doing these can you help? 8) 2n/5...
- algebra addistion - can you check my answers |-13| - |9| i got 4 |15| - |-3| i ...
- Math Ms due - Can you pls.check my answers ?? 3+2(4)-3+4(-3)= I got -4 3+4-2-5+3...
- MATH - i need to write each expression as a product of the same factor: * = ...
- math exponents - i need to write each expression as a product of the same factor...
- Quick math help - Can someone please check my math Hw? Thank you!! Solve each ...
- Algebra - Hi! I was wondering if anyone might be willing to check my answers for...

More Related Questions