(1 17/25∙2 1/7-24/7∙1 2/5)∙2 7/9

( 1 17/25·2 1/7- 2 4/7·1 2/5)·2 7/9 = ₋5 15/17

1) 1 17/25·2 1/7 = 1 41/85

2) 2 4/7·1 2/5 = 3 3/5

3) 1 41/85-3 3/5 = ₋2 2/17

4) ₋2 2/17·2 7/9 = ₋5 15/17

1) 1 17/25·2 1/7 = 1 41/85

2) 2 4/7·1 2/5 = 3 3/5

3) 1 41/85-3 3/5 = ₋2 2/17

4) ₋2 2/17·2 7/9 = ₋5 15/17

ответ:- 5 15/17