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Anonymous
13/15
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The actual answer is 7/8.
7 over 20 is greater than 4 over 15
(4/6) / (7/13) = 2/3 * (13/7) = 26/21 or 15/21
7 and 13 over 66
18/7 x 8/15 = 144/105 = 48/35 or 1 and 13/35