Solutions by everydaycalculation.com
1st number: 1/5, 2nd number: 1 5/20
15 - 2520 is -2120.
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Related: 2/5-25/20 1/5-50/20 1/10-25/20 1/5-25/40 3/5-25/20 1/5-75/20 1/15-25/20 1/5-25/60 1/25-25/20 7/5-25/20 1/35-25/20
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