Ответ:

1/3, 19/55, 2, 17, 1/4, 2

Пошаговое объяснение:

(2/7 + 5/21):1 4/7= 11/21: 11/7=1/3

(8/11 + 3/22) : 5/11=19/22 :5/11=19/55

1 7/12 :(3/8+5/12)=19/12 :19/24=2

17/36 :(7/12-5/9)= 17/36 : 1/36=17

(3/14+5/7):3 5/7=13/14 :26/7=1/4

19/24:(3/16+5/24)=19/24:19/48=2