iramazurk

Ответ:

10

Пошаговое объяснение:

1) 4. 11/36 + 5. 4/9 =

4. 11/36 + 5. 16/36 =

9. 27/36 = 9. 3/4

2) 9. 3/4 - 7,25 =

9. 3/4 - 7. 25/100 =

9. 3/4 - 7. 1/4 =

2. 2/4 = 2. 1/2

3) 2. 1/2 * 4 = 5/2 * 4 =

20/2 = 10