Question

выполните умножение 4/9×1/2;5/12×8/9;1/2×2/3;7/15×5/7

Answer 1

4/9 * 1/2 = (4*1)/(9*2) = 2/9

5/12 * 8/9 = (5*8)/(12*9) = (5*2)/(3*9) = 10/27

1/2 * 2/3 = (1*2)/(2*3) = 1/3

7/15 * 5/7 = (7*5)/(15*7) = 5/15 = 1/3