Solutions by everydaycalculation.com
1st number: 3 1/2, 2nd number: 5/7
72 - 57 is 3914.
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Related: 14/2-5/7 7/2-10/7 7/4-5/7 7/2-5/14 21/2-5/7 7/2-15/7 7/6-5/7 7/2-5/21 35/2-5/7 7/2-25/7 7/10-5/7 7/2-5/35 49/2-5/7 7/2-35/7 7/14-5/7 7/2-5/49
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