Solutions by everydaycalculation.com
1st number: 3/10, 2nd number: 2 5/10
310 - 2510 is -115.
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Related: 6/10-25/10 3/10-50/10 3/20-25/10 3/10-25/20 9/10-25/10 3/10-75/10 3/30-25/10 3/10-25/30 15/10-25/10 3/50-25/10 3/10-25/50 21/10-25/10 3/70-25/10 3/10-25/70
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