Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 4 9/10
1015 - 4910 is -12730.
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Related: 20/15-49/10 10/15-98/10 10/30-49/10 10/15-49/20 30/15-49/10 10/45-49/10 10/15-49/30 50/15-49/10 10/75-49/10 10/15-49/50 70/15-49/10 10/15-49/70
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