Выполните умножение. 1) 2(6/7) * 2(4/5) = 2) 2(3/8) * 1(13/19) = 3) 5(1/16) * 1(11/45) = 4) 2(1/3) * 1(3/14) =

1) 2(6/7) * 2(4/5) = 20/7 * 14/5 = 82) 2(3/8) * 1(13/19) = 19/8 * 32/19 = 43) 5(1/16) * 1(11/45) = 81/16 * 56/45 = 63/10 = 6(3/10)4) 2(1/3) * 1(3/14) = 7/3 * 17/14 = 17/6 = 2(5/6)