А) 1 1/8 : 3/4 = 9/8 : 3/4 = (9*4) / (8*3) = 3/2 = 1,5 б) 3 3/5 : 2 7/10 = 18/5 : 27/10 = (18*10) / (5*27) = 4/3 = 1 1/3 в) 4 3/7 : 1/ 7 - 1 5/6 * 3 = 25,5 1) 4 3/7 : 1/ 7 = 31/7 : 1/7 = 31 2) 1 5/6 * 3 = 11/6 * 3 = 33/6 = 5,5 3) 31 - 5,5 = 25,5