1) 1/5 + 1/9 = 14/452) 1/3 + 1/8 = 11/243) 1/6 + 1/7 = 13/42
Сумма всех дробей: 14/45 + 11/24 + 13/42 = (179 + 165 + 182) / 360 = 526 / 360 = 263 / 180
1) 1/5 + 1/9 = 14/45
2) 1/3 + 1/8 = 11/24
3) 1/6 + 1/7 = 13/42
Сумма всех дробей: 14/45 + 11/24 + 13/42 = (179 + 165 + 182) / 360 = 526 / 360 = 263 / 180