Ответ Автор - bainromanoff Ответ:1) 3.(54) - 2 1/3 = 351/99 - 7/3 = 351/99 - 231/99 = 120/99 = 1 7/333.(54) = 3 + 0.(54)0.(54) = x100x = 54.(54)99x = 54x = 54/99