Question

Subtract. Write your answer in simplest form.

3 1/8 - 7/12

A. 2 1/24
B. 3 13/24
C. 2 13/24
D. 3 11/24

Answer 1

I believe it is D

Explanation:

Answer 2

Answer: C

Work:

1) Change the Mixed number into an improper fraction
3 x 8 = 24
1+24 = 25/3

2) Get both fractions on equal terms. Find the Greatest Common Denominator. In this case, it’s 24. Multiply by what you need to get 24. 8x3=24 and 12x2=24

3) Multiply Accordingly
25/8 x 3 = 75/24
7/12 x 2 = 14/24

4) Subtract and change back to Mixed Number
75-14 = 61
61/24 = 2 13/24