Ответы: 1
Серый Бабуров
2017-10-01 01:23
1)8 5/9 * 6/35 = 77/9 * 6/35 = 22/15 = 1 7/15 2)1 7/15 + 22/15 = 22/15 + 22/15 = 44/15 = 2 14/15 3)1 31/32 * 3 1/5 = 63/32 * 16/5 = 63/10 = 6 3/10 4)2 14/15 * 5/12 = 44/15 * 5/12 = 11/9 = 1 2/9 5)6 3/10 — 1 2/9 = 63/10 — 11/9 =(63 * 9 — 11 * 10)/90 = 567/90 — 110/90 = 457/90 = 5 7/90 ответ: 5 7/90