Ответ Автор - aliyaham1807198 (0,6-14/15):6/7-(8/35-0,8):(-2 2/3)= (6/10-14/15)÷ 6/7 - (8/35-8/10) ÷ (-22/3) =(18-28/ 30) ÷ 6/7 - ( 16 - 56/70)÷ (22/3)= (-1/3)×7/6 - (-4/7)×3/22 = -7/18 + 6/77= -539 + 108 /1386 = -431/1386