A) 15/10-7/10-2/10-3/10=
8/10-2/10-3/10=
6/10-3/10=
3/10
B). 2-2/8-5/8=
2/1-2/8-5/8=
16/8-2/8-5/8=
14/8-5/8=
9/8
C) 10/5-1/5-2/5-3/5=
9/10-2/10-3/10=
7/10-3/10=
4/10
D). 16/2-2/2-3/2-8/2=
14/2-3/2-8/2=
11/2-8/2=
3/2
E). 1-1/6-2/6-3/6=
1/1-1/6-2/6-3/6=
6/6-1/6-2/6-3/6=
5/6-2/6-3/6=
3/6-3/6=
0
F). 1-7/9-1/9
1/1-7/9-1/9
9/9-7/9-1/9
2/9-1/9
1/9