Solutions by everydaycalculation.com
1st number: 1 10/15, 2nd number: 1 5/15
2515 + 2015 is 31.
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Related: 50/15+20/15 25/15+40/15 25/30+20/15 25/15+20/30 75/15+20/15 25/15+60/15 25/45+20/15 25/15+20/45 25/75+20/15 25/15+20/75
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