Solutions by everydaycalculation.com
1st number: 1/5, 2nd number: 1 5/10
15 - 1510 is -1310.
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Related: 2/5-15/10 1/5-30/10 1/10-15/10 1/5-15/20 3/5-15/10 1/5-45/10 1/15-15/10 1/5-15/30 1/5-75/10 1/25-15/10 1/5-15/50 7/5-15/10 1/35-15/10 1/5-15/70
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