Solutions by everydaycalculation.com
1st number: 3 1/2, 2nd number: 3 6/12
72 - 4212 is 01.
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Related: 14/2-42/12 7/2-84/12 7/4-42/12 7/2-42/24 21/2-42/12 7/6-42/12 7/2-42/36 35/2-42/12 7/10-42/12 7/2-42/60 49/2-42/12 7/14-42/12 7/2-42/84
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