Выполните действия:(7/12-1/3)*16/19; (11/24+1/6)*1 3/5; (7-2 5/16)*4/25
(7/12 - 1/3) * 16/19 = (7-4)/12 * 16/19 = 3/12 * 16/19 = 3/3 * 4/19 = 12/57 = 4/19
(11/24 + 1/6) * 1 3/5 = (11+4/24) * 8/5 = 15/24 * 8/5 = 3/4
(7 - 2 5/16) * 4/25 = 4 11/16 * 4/25 = 75/16 * 4/25 = 3/4
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