2/4 + 4/4
2/3 + 5/3
12/7 + 8/7
23/12 + 4/12
6/4
7/3
20/7
27/12
28/44 - 23/44
5/6 - 2/6
33/34 - 32/34
14/9 - 3/9
5/44
3/6
11/9
1/34
8/2 x 3/4
3/5 x 8/4
1/12 x 9/3
2/6 x 10/3
24/20
9/36
20/18
24/12
4/5 : 2/11
10/4 : 2/3
4/9 : 8/6
8/2 : 3/4
30/8
32/6
44/10
24/72