решение
можно:
(4 + 2/3) * (1 + 4/77) = 4 + 2/3 + 16/77 + 8/231 =
= 4 + 154/231 + 48/231 + 8/231 = 4 + 210/231 = 4 + 10/11
решение
можно:
(4 + 2/3) * (1 + 4/77) = 4 + 2/3 + 16/77 + 8/231 =
= 4 + 154/231 + 48/231 + 8/231 = 4 + 210/231 = 4 + 10/11