7 5/18-3 2/27-11/54=
7 15/54-3 4/54-11/54=4
8 7/12-4 5/18+1 1/4=
8 21/36-4 10/36+1 9/36=
5 20/36=5 5/9
9 3/20-2 3/25-4=
9 15/100-2 12/100-4=
3 3/100
5 11/42-2 3/14-1 1/21=
5 11/42-2 9/42-2/42=3
13-5 7/12-1 4/15=
12 60/60-5 35/60-1 16/60=6 3/20
11-6 13/21-3/14=
10 42/42-6 26/42-9/42=4 1/6