Задание 1. 3) (1/3-5/16):(1/6-1/8)= 4) (5/7-2/3):(3/9-5/12)= Задание 2. 3) (3 1/8+1 3/4)x=2 1/6 4) (2 1/12-1 5/6)x=2 1/6 Помагите ПЛЗ

(1/3 - 5/16) : (1/6 - 1/8) = (16-15)/16 : (3-4)/24 = 1/16 : (-1/24) = 1/16 * (-24/1) = -3/2 = - 1 1/2 (5/7 - 2/3) : (3/9 - 5/12) = (15-14)/21 : (12-15)/36 = 1/21 : (-3/36) = 1/21 * (-36/3) = -12/21 (3 1/8 + 1 3/4) х = 2 1/6 (25/8+7/4)х = 13/6 (25+14)/8х = 13/6 63/8х = 13/6 х = 13/6 : 63/8 = 13/6 * 8/63 = 13/3 * 4/63 = 52/189 (2 1/12 - 1 5/6) х= 2 1/6 (25/12 - 11/6)х = 13/6 (25-22)/12х = 13/6 3/12х = 13/6 х = 13/6 : 3/12 = 13/6 * 12/3 = 13/1 * 2/3 = 26/3 = 8 2/3