Вычислите (9-2 2/15*3 1/8)*9/14

Question

Вычислите (9-2 2/15*3 1/8)*9/14

Answer 1

(9 - 2 2/15 * 3 1/8) * 9/14 = 1 1/21) 2 2/15 * 3 1/8 = 32/15 * 25/8 = (4*5)/(3*1) = 20/3 = 6 2/32) 9 - 6 2/3 = 8 3/3 - 6 2/3 = 2 1/33) 2 1/3 * 9/14 = 7/3 * 9/14 = (1*3)/(1*2) = 3/2 = 1 1/2