Solutions by everydaycalculation.com
1st number: 15/21, 2nd number: 4 2/7
1521 is smaller than 307
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Related: 30/21 and 30/7 15/21 and 60/7 15/42 and 30/7 15/21 and 30/14 45/21 and 30/7 15/21 and 90/7 15/63 and 30/7 15/21 and 30/21 75/21 and 30/7 15/21 and 30/35 15/21 and 30/49
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