20/40 - 1/2, 4/10 - 2/5, 15/18 - 5/6, 25/35 - 5/7, 14/26 - 7/13, 34/24 - 17/12, 35/56 - 5/8, 8/12 - 2/3, 27/36 - 3/4, 100/300 - 1/3,

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