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2013-09-20T07:02:39+02:00
48/75 = 16/25
186/201 = 62/67
235/30 = 47/6
1575/2925 = 315/585 = 63/117 = 7/13
891/276 = 297/92
575/1275 = 115/255 = 23/ 51