Solutions by everydaycalculation.com
1st number: 3 4/12, 2nd number: 2 11/12
4012 - 3512 is 512.
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Related: 80/12-35/12 40/12-70/12 40/24-35/12 40/12-35/24 40/36-35/12 40/12-35/36 40/60-35/12 40/12-35/60 40/84-35/12 40/12-35/84
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