5х-3целых3/8х+4/5х ;упростить выражение
5x - 3 3/8x + 4/5x x * ( 5 - 3 3/8 + 4/5 ) x * ( 5*40/40 - 27*5/40 + 4*8/40 ) x * ( 200/40 - 135/40 + 32/40 ) = 97/40x = 2 17/40 x