Ответ:

1. 4/17   2. 3/4   3. 1 7/20   4. 1 8/25   5. 1 1/7   6. 3/4

Пошаговое объяснение:

1. 1 9/17 * 2/13 = 26/17 * 2/13 = 4/17

2. 1 5/16 * 4/7 = 21/16 * 4/7 = 3/4

3. 9/16 * 2 2/5 = 9/16 * 12/5 = 27/20 = 1 7/20

4. 3/5 * 2 1/5 = 3/5 * 11/5 = 33/25 = 1 8/25

5. 2 2/49 * 14/25 = 100/49 * 14/25 = 8/7 = 1 1/7

6. 4/9 * 1 11/16 = 4/9 * 27/16 = 3/4