(4 / 5 - 2 / 3 : 7 / 15) - 3 / 2 =7 / 3 ( 1 / 2 + 1 / 4) + 1 / 2 - 5 = 5 ( 2 / 4 + 1 / 3) : ( - 2) = ( 1 / 3 - 5 / 3 - 1 / 4) ( - 3) =plissss?
(4 / 5 - 2 / 3 : 7 / 15) - 3 / 2 = 7 / 3 ( 1 / 2 + 1 / 4) + 1 / 2 - 5 = 5 ( 2 / 4 + 1 / 3) : ( - 2) = ( 1 / 3 - 5 / 3 - 1 / 4) ( - 3) = plissss.