Solutions by everydaycalculation.com
1st number: 10/12, 2nd number: 2 5/10
1012 - 2510 is -53.
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Related: 20/12-25/10 10/12-50/10 10/24-25/10 10/12-25/20 30/12-25/10 10/12-75/10 10/36-25/10 10/12-25/30 50/12-25/10 10/60-25/10 10/12-25/50 70/12-25/10 10/84-25/10 10/12-25/70
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