(2 1\6+5 1\6:4 2\15)*3\82

(2 1/6 + 5 1/6 : 4 2/15) * 3/82 = 1/81) 5 1/6 : 4 2/15 = 31/6 : 62/15 = 31/6 * 15/62 = 1/2 * 5/2 = 5/4 = 1 1/42) 2 1/6 + 1 1/4 = 2 2/12 + 1 3/12 = 3 5/123) 3 5/12 * 3/82 = 41/12 * 3/82 = 1/4 * 1/2 = 1/8Подробнее - на Znanija.com - https://znanija.com/task/28487367#readmore