(3 5/7-2 9/14)*1 2/5:(2 1/12+ 1/6) СРОЧНО ВЫРУЧАЙТЕ

Question

(3 5/7-2 9/14)*1 2/5:(2 1/12+ 1/6) СРОЧНО ВЫРУЧАЙТЕ

Answer 1

1) 3 5/7 - 2 9/14 = 3 10/14 - 2 9/14 = 1 1/14
2) 1 1/14 * 1 2/5 = 15/14 * 7/5 = 3/2
3) 2 1/12 + 1/6 = 2 1/12 + 2/12 = 2 3/12 = 2 1/4
4) 3/2 : 2 1/4 = 3/2 : 9/4 = 3/2 * 4/9 = 12/18 = 2/3

Ответ: 2/3