Correct: 15/18 = 5/6, 42/54 = 7/9, 48/56 = 6/7, 50/55 = 10/11, 28/35 = 4/5, Incorrect: 8/18 = 1/7, 6/16 = 1/6, 7/42 = 1/7, 14/18 = 1/6, 6/42 = 1/6,

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