Subtraction
21/4-19/4
what is 3/4
2 1/9+2/3
what is 2 7/9
4x3/10
what is 1 1/5
1/2/8
what is 1/16
42/8-40/8
what is 1/4
1 1/4+2 5/8
what is 3 7/8
5/8x3
what is 1 7/8
3/1/10
what is 30
69/9-69/18
what is 3 15/18
1/4+14/20
what is 19/20
3/5x1/4
what is 3/10
9/1/3
what is 27
9/10-1/5
what is 7/10
1/3+1/4
what is 7/12
1/2x3/8
what is 3/16
1/4/3
what is 1/12
1/4x5/8
what is 7/8
3/5x1/4
what is 3/20
10/1/2
what is 20