1
3/8+3/8
6/8=3/4
24/50+17/50
41/50
10/12-5/12
5/12
21/37-14/37
7/37
2/25+3/5
17/25
4/9+1/3
7/9
5/7+3/14
13/14
7/12+5/18
31/36
2/3+1/4-5/6
6/12
3/5+3/10-1/2
4/10
7/8-5/6+5/12
11/24
1/3-5/24+7/18
29/48
15/4*29/9
12.1/12
23/6*6/2
9.7/12
20/12*32/10
5.1/3
20/6*11/3
12.4/18
5/8:5/2
1/4
7/8:11/5
35/88
5/7:11/3
15/77
7/15:22/7
49/330