Сократите дробь 1) 49/77*88/42*36/180 2) 25/121*11/56*64/100*77

Сократим дроби:

1) 49 / 77 * 88 / 42 * 36 / 180 = (49 * 88 * 36) / (77 * 42 * 180) = (49 * 8 * 9) / (7 * 7 * 180) = (1 * 8 * 3) / (1 * 1 * 60) = 8 * 3 / (3 * 20) = 8 / 20 = 2 / 5;

2) 25 / 121 * 11 / 56 * 64 / 100 * 77 = (25 * 11) / (121 * 56 * 100) = (1 * 1) / (11 * 56 * 4) = 1 / (11 * 56 * 4) = 1 / 2464.