(1 1/3-7/12)*60 Найдите ответ пж
(1 1/3 - 7/12) * 60 = (4/3 - 7/12) * 60 = = ((16-7)/12 ) * (60/1) = (9*60) / (12*1) = = (9 *5)/ (1*1) = 45/1 = 45 можно решить по-другому: (1 1/3 - 7/12 ) * 60 = 4/3 * 60/1 - 7/12 * 60/1 = = 4*20 - 7*5 = 80 -35 = 45