Расположите в порядке возрастания числа: 1) 7/12, 3/8, 1/4, 5/6; 2) 3/4, 8/15, 5/12, 9/20.

1) 7/12 * 2/2 = 14/24, 3/8 * 3/3 = 9/24, 1/4 * 6/6 = 6/24, 5/6 * 4/4 = 20/24Ответ: 1/4, 3/8, 7/12, 5/6;2) 3/4 * 15/15 = 45/60, 8/15 * 4/4 = 32/60, 5/12 * 5/5 = 25/60, 9/20 * 3/3 = 27/60Ответ: 5/12, 9/20, 8/15, 3/4.