Solutions by everydaycalculation.com
1st number: 5/12, 2nd number: 4 1/12
512 - 4912 is -113.
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Related: 10/12-49/12 5/12-98/12 5/24-49/12 5/12-49/24 15/12-49/12 5/36-49/12 5/12-49/36 25/12-49/12 5/60-49/12 5/12-49/60 35/12-49/12 5/84-49/12 5/12-49/84
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