lida2708

Ответ:

1) 4 7/12 + 3 = 7 7/12

2) 1 2/7 + 8 1/3 = 9 6+7/21=9 13/21

3)24 14/15 - 11 1/5 = 13 14-3/15= 13 11/15

4) 6 11/42 - 2 5/6 = 4 11-35/42= 3 53-35/42= 3 18/42= 3 3/7