Solutions by everydaycalculation.com
1st number: 15/28, 2nd number: 1 8/10
1528 - 1810 is -177140.
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Related: 30/28-18/10 15/28-36/10 15/56-18/10 15/28-18/20 45/28-18/10 15/28-54/10 15/84-18/10 15/28-18/30 75/28-18/10 15/28-90/10 15/28-18/50 15/28-18/70
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