2 1/9 - 4/9
2 1/4 + 4 5/6
10-6 2/5
3/11 + 1/2

Ответ:

2 1/9-4/9=1 10/9 - 4/9 =1 6/9 = 1 2/3

2 1/4 + 4 5/6 = 2 3/12 + 4 10/12 = 6 13/12 = 7 1/12

10 - 6 2/5 = 9 5/5 - 6 2/5 = 3 3/5

3/11 + 1/2 = 6/22 + 11/22 = 17/22

1)1 2/3

2)7 1/12

3)3 3/5

4)17/22