Solutions by everydaycalculation.com
1st number: 1 3/15, 2nd number: 6/15
1815 + 615 is 85.
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Related: 36/15+6/15 18/15+12/15 18/30+6/15 18/15+6/30 54/15+6/15 18/15+18/15 18/45+6/15 18/15+6/45 90/15+6/15 18/15+30/15 18/75+6/15 18/15+6/75 18/15+42/15
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