(15 11) / (18 33) = 165 / 594 = 55 / 198
(7 9 25) / (21 3 50) = 1575 / 3150 = 1 / 2
(15 7) / (30 4) = 105 / 120 = 7 / 8
(15 11) / (18 33) = 165 / 594 = 55 / 198
(7 9 25) / (21 3 50) = 1575 / 3150 = 1 / 2
(15 7) / (30 4) = 105 / 120 = 7 / 8