Solutions by everydaycalculation.com
1st number: 1 3/15, 2nd number: 16/21
1815 - 1621 is 46105.
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Related: 36/15-16/21 18/15-32/21 18/30-16/21 18/15-16/42 54/15-16/21 18/15-48/21 18/45-16/21 18/15-16/63 90/15-16/21 18/15-80/21 18/75-16/21
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