а) (1-1/2)/(1/2-1/3) = (1/2)/(1/6) = (1/2)/(2/6) = (1/2) * (6/2) = 3
б) (4/9+1/3)/2/3 = (4/9+3/9)/(2/3) = (7/9) / (2/3) = (7/9) * (3/2) = 7/6
в) (1/3+14)/(2-5/6) = (1/3 + 14)/(7/6) = (1/3 + 84/6)/(7/6) = (1/3 + 14)/(7/6) = (43/3) / (7/6) = (43/3) * (6/7) = 86/7
г) (1/2+1/4-2/5)/4/5 = (10/20 + 5/20 - 8/20)/(4/5) = (7/20)/(4/5) = (7/20) * (5/4) = 7/16
д) (1 1/2 - 3/8) / 7 = (3/2 - 3/8) / 7 = (12/8 - 3/8) / 7 = 9/8 / 7 = 9/8 * 1/7 = 9/56
е) (1-1/4+3/8) / 3/4 = (4/4 - 1/4 + 3/8) / 3/4 = (6/8 - 2/8 + 3/8) / 3/4 = 7/8 / 3/4 = 7/8 * 4/3 = 7/6
а) (1-1/2)/(1/2-1/3) = (1/2)/(1/6) = (1/2)/(2/6) = (1/2) * (6/2) = 3
б) (4/9+1/3)/2/3 = (4/9+3/9)/(2/3) = (7/9) / (2/3) = (7/9) * (3/2) = 7/6
в) (1/3+14)/(2-5/6) = (1/3 + 14)/(7/6) = (1/3 + 84/6)/(7/6) = (1/3 + 14)/(7/6) = (43/3) / (7/6) = (43/3) * (6/7) = 86/7
г) (1/2+1/4-2/5)/4/5 = (10/20 + 5/20 - 8/20)/(4/5) = (7/20)/(4/5) = (7/20) * (5/4) = 7/16
д) (1 1/2 - 3/8) / 7 = (3/2 - 3/8) / 7 = (12/8 - 3/8) / 7 = 9/8 / 7 = 9/8 * 1/7 = 9/56
е) (1-1/4+3/8) / 3/4 = (4/4 - 1/4 + 3/8) / 3/4 = (6/8 - 2/8 + 3/8) / 3/4 = 7/8 / 3/4 = 7/8 * 4/3 = 7/6