Verified answer

(2 12/35 : 4/5 - 1 8/35) : 0,3 = 5 2/3

1) 2 12/35 : 4/5 = 82/35 · 5/4 = (41·1)/(7·2) = 41/14 = 2 13/14

2) 2 13/14 - 1 8/35 = 2 65/70 - 1 16/70 = 1 49/70 = 1 7/10 = 1,7

3) 1,7 : 0,3 = 17/3 = 5 2/3

Ответ: 5 целых 2/3.