67-37
30
4/1 x 3/5
12/5
20-8
12
6/7 x 1/1
6/77
20+7
27
2/3 x 5
10/3
40+20
60
1 5
_ x _
6 5
5
_
30+37
67777
6/9 x 6/8
36/72