(9 4/15 - 5 3/5 · 1 1/7) · 2 1/43 = 5 4/5.
1) 5 3/5 · 1 1/7 = 28/5 · 8/7 = (4·8)/(5·1) = 32/5 = 6 2/5
2) 9 4/15 - 6 2/5 = 8 19/15 - 6 6/15 = 2 13/15
3) 2 13/15 · 2 1/43 = 43/15 · 87/43 = 87/15 = 29/5 = 5 4/5
ответ: 5 целых 4/5.
