5/7 + 3 целых 6/7 = 1 целая 6/11 - 7/11 = 9/15 + 7/15 = 9 целых - 3 целых 7/8 = 6 целых 6/13 - 5 целых 11/13 = 2 целых 15/19 + 1 целая 5/19 = 1 целая 5/7 - 6/7 = 19/21 + 9/21 = 9 целых 1/7 - 2 целых 5/7 = 6 целых 8/9 + 7 целых 5/9 = 6/7 + 5/7 = 5 целых 3/8 - 3 целых = 7 целых 9/17 + 8 целых 8/17 = 9 целых 3/13 - 8 целых 9/13 = 1 целая 6/11 - 7/11 =

5/7 + 3 целых 6/7 = 4 целых 4/7

1 целая 6/11 - 7/11 = 10/11

9/15 + 7/15 = 16/15 = 1 целая 1/15

9 целых - 3 целых 7/8 = 5 целых 1/8

6 целых 6/13 - 5 целых 11/13 = 8/13

2 целых 15/19 + 1 целая 5/19 = 4 целых 1/19

1 целая 5/7 - 6/7 = 6/7

19/21 + 9/21 = 28/21 = 1 целая 1/3

9 целых 1/7 - 2 целых 5/7 = 6 целых 3/7

6 целых 8/9 + 7 целых 5/9 = 14 целых 4/9

6/7 + 5/7 = 11/7 = 1 целая 4/7

5 целых 3/8 - 3 целых = 2 целых 3/8

7 целых 9/17 + 8 целых 8/17 = 16

9 целых 3/13 - 8 целых 9/13 = 6/13

1 целая 6/11 - 7/11 = 10/11