Ответ:

Объяснение:

(11/10 + 11/13) : 22/39 = 253/130 : 22/39 = 253/130 * 39/253 = 69/20 = 3 9/20

1,6 / (1+1/9) = 8/5 : 10/9 = 8/5 * 9/10 = 36/25 = 1 11/25

(2,4/3,2) * 2 = 0,75 * 2 = 1,5

9 / (3-2) = 9

0,007 * 7 * 700 = 34,3

4,7 * 8,5 - 4,65 = 35,3

-10 * (-6,8) - 1,9 = 68 - 1,9 = 66,1

19/2 - 7/25 = (475-14) / 50 = 461/50 = 9 11/50

1 / (1/22+1/18) = 1 : 10/99 = 1 * 99/10 = 99/10 = 9,9