Ответ Автор - dkelyan 4 10/38 + х + 1 1/38 = 12 19/385 11 /38 + х = 12 19/38х = 12 19/38 - 5 11/38х = 7 8/384 10/38 + 7 8/38 + 1 1/38 = 12 19/38Удачи!