1) (2/3)^2 = 4/9 2) (3/4)^3 = 27/64 3) (3/2)^3 = 9/4 = 2.25 4) (2 1/3)^2 = (7/3)^2 = 49/9 = 5 4/9 при делении вторую дробь переворачиваем 5) 3/5 : 1/5 = 3/5 * 5/1 = 3 6) 2/15 : 8/5 = 2/15 * 5/8 = 1/12