Solutions by everydaycalculation.com
1st number: 6/40, 2nd number: 1 3/12
640 is smaller than 1512
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Related: 12/40 and 15/12 6/40 and 30/12 6/80 and 15/12 6/40 and 15/24 18/40 and 15/12 6/40 and 45/12 6/40 and 15/36 30/40 and 15/12 6/40 and 75/12 6/40 and 15/60 42/40 and 15/12 6/40 and 15/84
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