(1,25+5/6):8*1/3 (1/12+1/15-0,05):0,2
(1,25+5/6):8*1/3= 0,08680555555 (1/12+1/15-0,05):0,2=0,5
(1.25+5/6):8 1/3-3/7 1) 1.25+5/6 = 1 целая 1/4 +5/6 = 5/4+5/6= 15/12 + 10/12 = 25/12 2) 25/12 : 8 целых 1/3= 25/12 : 25/3 = 25/12 * 3 / 25 = 3/12 = 1/4 3) 1/4 - 3/7 = 7/28 - 12/28 = -5/28 Ответ: -5/28