Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 2 5/15
1015 + 3515 is 31.
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Related: 20/15+35/15 10/15+70/15 10/30+35/15 10/15+35/30 30/15+35/15 10/45+35/15 10/15+35/45 50/15+35/15 10/75+35/15 10/15+35/75 70/15+35/15
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