Пожалуимта за 10мин надо

3 11/30

1) -4/5 × 1 1/5 = -4/5 × 6/5 = 24/25

2)24/25+ 53/50 = 48/50 + 53/50 =101/50= 2,02

3)2,02 ÷ 3/5 = 2,02 × 5/3 = 101/50 × 5/3 = 101/10 × 1/3 =

101/30 = 3 11/30