4. Сократите: 6/14*22/10, 7/30*15/33, 9/8*2/18*3/21, 8/16*7/25*4/5

1) 6/14 * 22/10 = (6 * 22) / (14 * 10) = 132/140 = 33/35 2) 7/30 * 15/33 = (7 * 15) / (30 * 33) = 105/990 = 7/66 3) 9/8 * 2/18 * 3/21 = (9 * 2 * 3) / (8 * 18 * 21) = 54 / 3024 = 1/56 4) 8/16 * 7/25 * 4/5 = (8 * 7 * 4) / (16 * 25 * 5) = 224/2000 = 14/125 Ответ: 33/35, 7/66, 1/56, 14/125