(12 1/3 -7 3/4)×6/11
12 1/3 -7 3/4 = 37/ 3 - 31 / 4 = 148 / 12 - 93 / 12 = 55 / 12 55 / 12 * 6 / 11 = 605 / 132 * 72 / 132 = 43560 / 132 = 330 Ответ : 330