(3 1/3+5 1/6)×2/5-2 3/4:(1 1/2-2/5)
РЕШИТЕ ПОЖАЛУЙСТА

(3 1/3 + 5 1/6) · 2/5 - 2 3/4 : (1 1/2 - 2/5) = 9/10

1) 3 1/3 + 5 1/6 = 3 2/6 + 5 1/6 = 8 3/6 = 8 1/2 = 17/2

2) 17/2 · 2/5 = 17/5 = 3 2/5

3) 1 1/2 - 2/5 = 1 5/10 - 4/10 = 1 1/10 = 11/10

4) 2 3/4 : 11/10 = 11/4 · 10/11 = 10/4 = 5/2 = 2 1/2

5) 3 2/5 - 2 1/2 = 3 4/10 - 2 5/10 = 2 14/10 - 2 5/10 = 9/10

Ответ: 9/10.