Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 1 1/5
1015 - 65 is -815.
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Related: 20/15-6/5 10/15-12/5 10/30-6/5 10/15-6/10 30/15-6/5 10/15-18/5 10/45-6/5 10/15-6/15 50/15-6/5 10/15-30/5 10/75-6/5 10/15-6/25 70/15-6/5 10/15-42/5 10/15-6/35
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