Ответ:

Пошаговое объяснение:

1) = 7. 5/6 - 3. 4/6 = 4. 1/6

2) = 8. 25/60 - 6. 21/60 =

2. 4/60 = 2. 1/15

3) = 11. 33/36 - 5. 28/36 =

6. 5/36

4) = 9. 51/72 - 8. 22/72 =

1. 29/72