56/72 = 7/9 = 28/36 и 10/24 = 5/12 = 15/36
70/3500 = 1/50 и 21/75 = 7/25 = 14/50
24/32 = 3/4 = 33/44 и 30/55 = 6/11 = 24/44
...............
16 = 256/16
9
--
19
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