Question

Вычислите (9 / 17 – 11 / 34) × 17 / 28

Answer 1

(9/17 - 11/34) * 17/28 =
= (18/34 - 11/34) * 17/28 =
= (18-11)/34 * 17/28 =
= 7/34 * 17/28 =
= (7*17)/(34*28) =
= (7*17)/(17*2*7*4) =
= 1/(2*4) = 1/8 = 0.125

Answer 2

Спасибо