Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 5 5/15
1015 - 8015 is -143.
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Related: 20/15-80/15 10/30-80/15 10/15-80/30 30/15-80/15 10/45-80/15 10/15-80/45 50/15-80/15 10/75-80/15 10/15-80/75 70/15-80/15
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