Solutions by everydaycalculation.com
1st number: 1 5/10, 2nd number: 7 2/10
1510 - 7210 is -5710.
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Related: 30/10-72/10 15/20-72/10 15/10-72/20 45/10-72/10 15/30-72/10 15/10-72/30 75/10-72/10 15/50-72/10 15/10-72/50 15/70-72/10 15/10-72/70
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