Question

срочно помогите дам 37 баллов​

Answer 1

Ответ:

(2/7+3 1/2) * 4 2/3 = 53/14 * 14/3 = 53/3

(4 1/5 - 2 3/4) * 2 2/19 = 29/20 * 40/19 = 58/19

(5 6/7 + 3 5/21) * 2 1/10 =(9 + 2/21) * 21/10 = 191/10

(7 5/12 - 3 1/6) * 2 2/17 = 17/4 * 36/17 = 9