Solutions by everydaycalculation.com
1st number: 5/10, 2nd number: 2 7/10
510 - 2710 is -115.
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Related: 5/10-54/10 5/20-27/10 5/10-27/20 15/10-27/10 5/10-81/10 5/30-27/10 5/10-27/30 25/10-27/10 5/50-27/10 5/10-27/50 35/10-27/10 5/70-27/10 5/10-27/70
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