Помогите плиз.
4 7/8 + 1 5/8
2 7/15 + 3 13/15
4 8/13 + 2 6/13
5 5/12 + 1 11/12
6 2/5 - 4 7/9
10 3/4 - 7
8 9/13 + 7 12/13
5 3/5 - 2 8/11
4 5/11 - 2 8/11
2 18/25 + 7 8/25
8 3/17 - 4 11/17
6 8/23 - 12/23
10 3/5 + 6 4/5
5 7/9 + 3 4/9
8 3/9 + 1 7/9
12 7/8 + 3 7/8
10 3/7 - 4 5/7