Solutions by everydaycalculation.com
1st number: 15/21, 2nd number: 1 1/15
1521 is smaller than 1615
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Related: 30/21 and 16/15 15/21 and 32/15 15/42 and 16/15 15/21 and 16/30 45/21 and 16/15 15/21 and 48/15 15/63 and 16/15 15/21 and 16/45 75/21 and 16/15 15/21 and 80/15 15/21 and 16/75
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