Вычислить: (7 целых 1/2): (2 целых 1/2)*(3 целых 2/3)-(5 целых 1/5)* (5/13)*(1 целая 1/2)в кубе.

(7 1/2) : (2 1/2) · (3 2/3) - (5 1/5) · (5/13) · (1 1/2)³ = 4,25

1) 7 1/2 : 2 1/2 = 7,5 : 2,5 = 3

2) 3 · (3 2/3) = 3 · 11/3 = 11

3) (5 1/5) · (5/13) = 26/5 · 5/13 = 26/13 = 2

4) (1 1/2)³ = (3/2)³ = 3/2 · 3/2 · 3/2 = 27/8

5) 2 · 27/8 = 27/4 = 6 3/4 = 6,75

6) 11 - 6,75 = 4,25