Front

3/4 + 1/4

Back

4/4 = 1

Front

5/6 - 1/6

Back

4/6 = 2/3

Front

3/8 - 1/4

Back

3/8 - 2/8 = 1/8

Front

Convert 1/2 to denominator 8

Back

4/8

Front

1/3 + 1/2

Back

2/6 + 3/6 = 5/6

Front

Convert 3/5 to denominator 10

Back

6/10

Front

2/5 + 3/10

Back

4/10 + 3/10 = 7/10

Front

12/3 - 8/3

(simplify to a mixed #)

Back

1 1/3

Front

7/8 - 1/2

Back

7/8 - 4/8 = 3/8

Front

5 4/9 - 4 2/9

Back

1 2/9