7/52 = 35/260 и 11/260,
9/80 = 81/720, 19/360 = 38/720 и 1/30 = 24/720,
2/9 = 32/144, 17/24 = 102/144, 5/16 = 45/144 и 5/6 = 120/144
7/52 = 35/260 и 11/260,
9/80 = 81/720, 19/360 = 38/720 и 1/30 = 24/720,
2/9 = 32/144, 17/24 = 102/144, 5/16 = 45/144 и 5/6 = 120/144
2) 720
3) 144 мы с учительницей решали