Solutions by everydaycalculation.com
1st number: 1 5/10, 2nd number: 9 0/10
1510 - 9010 is -152.
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Related: 30/10-90/10 15/20-90/10 15/10-90/20 45/10-90/10 15/30-90/10 15/10-90/30 75/10-90/10 15/50-90/10 15/10-90/50 15/70-90/10 15/10-90/70
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