Solutions by everydaycalculation.com
1st number: 3/10, 2nd number: 1 5/15
310 - 2015 is -3130.
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Related: 6/10-20/15 3/10-40/15 3/20-20/15 3/10-20/30 9/10-20/15 3/10-60/15 3/30-20/15 3/10-20/45 15/10-20/15 3/50-20/15 3/10-20/75 21/10-20/15 3/70-20/15
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