Дроби 1 целая 1/3 х + 5/6 х = 2 целых 1/2 + 7/12 - 4 целых 1/4

1 1/3 х + 5/6 х = 2 1/2 + 7/12 - 4 1/4

(4 * 4) / (3 х * 4) + (5 * 2) / (6 х * 2) = (5 * 6) / (2 * 6) + 7/12 - (17 * 3) / (4 * 3)

(16 + 10) / 12 х = (30 + 7 - 51) / 12

26/12 х = - 14/12

26 * 12 = - 14 * 12 х

26 = 14 х

1 12/14 = х

1 6/7 = х