Solutions by everydaycalculation.com
1st number: 5/12, 2nd number: 2 11/12
512 - 3512 is -52.
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Related: 10/12-35/12 5/12-70/12 5/24-35/12 5/12-35/24 15/12-35/12 5/36-35/12 5/12-35/36 25/12-35/12 5/60-35/12 5/12-35/60 35/12-35/12 5/84-35/12 5/12-35/84
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