Question

(2 2/3*3/8-3/25*1/2):2/5

Answer 1

(2 2/3 * 3/8 - 3/25 * 1/2) : 2/5 = 2 7/20

1) 2 2/3 * 3/8 = 8/3 * 3/8 = 1

2) 3/25 * 1/2 = 3/50

3) 1 - 3/50 = 50/50 - 3/50 = 47/50

4) 47/50 : 2/5 = 47/50 * 5/2 = (47*1)/(10*2) = 47/20 = 2 7/20

Ответ: 2 целых 7/20.

Answer 2

$( frac{8}{3} times frac{3}{8} - frac{3}{50} times frac{5}{2} = \ = (1 - frac{3}{50} ) times frac{5}{2} = frac{47}{50} times frac{5}{2} = frac{47}{10} times frac{1}{2} = 2.35$