1/2 = 10/20
3/5 = 12/20
3/4 = 15/20
1 1/4 = 1 5/20
3/2 = 1 1/2 = 1 10/20
2 1/5 = 2 4/20
12/20,10/20,15/20,1 10/20,1 5/20,2 4/20
1/2 = 10/20
3/5 = 12/20
3/4 = 15/20
1 1/4 = 1 5/20
3/2 = 1 1/2 = 1 10/20
2 1/5 = 2 4/20
12/20,10/20,15/20,1 10/20,1 5/20,2 4/20