Найдите значение выражение (2 1/6-2/3)×(1×7/15)
(2 1/6 - 2/3)*(1*7/15) = (2 1/6 - 4/6)*7/15 = (1 3/6)*7/15 = (1 1/2)*7/15 = = 3/2*7/15 = 21/30 = 7/10 = 0,7