9/10 5/12 = (95) / (10*12) = 45 / 120 = 3 / 8
3/5 : 11/15 = (3/5) * (15/11) = 45 / 55 = 9 / 11
9/22 2/3 = (92) / (22*3) = 18 / 66 = 3 / 11
9/10 5/12 = (95) / (10*12) = 45 / 120 = 3 / 8
3/5 : 11/15 = (3/5) * (15/11) = 45 / 55 = 9 / 11
9/22 2/3 = (92) / (22*3) = 18 / 66 = 3 / 11