Ответ:
5 + 3/10 = 5 3/10
7 5/11 - 3 = 4 5/11
2 3/6 + 4 = 6 3/6
1 - 3/14 = 14/14 - 3/14 = 11/14
7 - 5/17 = 6 17/17 - 5/17 = 6 12/17
3 7/18 + 5/18 = 3 12/18
8 5/9 - 2/9 = 8 3/9
6 2/5 - 2/5 = 6
3 2/15 + 2 4/15 = 5 6/15
9 - 4 2/11 = 5 2/11
9 7/10 + 1 3/10 = 11
12 11/20 - 5 7/20 = 7 4/20 = 7 1/5
4 5/15 + 5 3/25 = 4 25/75 + 5 9/75 = 9 34/75
8 5/8 - 3 1/4 = 8 5/8 - 3 2/4 = 5 3/4
1 - 3/8 + 1/4 = 8/8 - 3/8 + 2/8 = 7/8