Verified answer

Ответ:

5.

Пошаговое объяснение:

6 * 2 1/2 * (27/20 - 3/4) - 4 8/9 * 9/11​

1) 27/20 - 3/4 = 27/20 - 15/20 = 12/20 = 3/5.

2) 6 * 2 1/2 = 6/1 * 5/2 = 30/2 = 15.

3) 3/5 * 15 = 3/5 * 15/1 = 45/5 = 9.

4) 4 8/9 * 9/11 = 44/9 * 9/11 = 4/1 * 1/1 = 4.

5) 9 - 4 = 5.