Question

(5/6-3/7):17/21 найдите значения выражения

Answer 1

(5/6 - 3/7) : 17/21 = 1/2

1) 5/6 - 3/7 = 35/42 - 18/42 = 17/42;

2) 17/42 : 17/21 = 17/42 · 21/17 = 1/2