Show:
Adding
Subtracting
100

Add the following fractions:

1/7 + 2/7

3/7

100

Subtract the following fractions:

7/11 - 4/11

3/11

200

Add the following fractions:

1/2 + 3/8

7/8

200

Subtract the following fractions:

4/7 - 5/14

3/14

300

Add the following fractions:

2 3/4 + 3/4

3 1/2

300

Subtract the following fractions:

1 2/3 - 5/6

5/6