Solutions by everydaycalculation.com
1st number: 1 7/18, 2nd number: 1 9/15
2518 - 2415 is -1990.
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Related: 50/18-24/15 25/18-48/15 25/36-24/15 25/18-24/30 75/18-24/15 25/18-72/15 25/54-24/15 25/18-24/45 25/90-24/15 25/18-24/75
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