Solutions by everydaycalculation.com
1st number: 2 7/10, 2nd number: 4 9/10
2710 - 4910 is -115.
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Related: 54/10-49/10 27/10-98/10 27/20-49/10 27/10-49/20 81/10-49/10 27/30-49/10 27/10-49/30 27/50-49/10 27/10-49/50 27/70-49/10 27/10-49/70
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