Solutions by everydaycalculation.com
1st number: 3 1/2, 2nd number: 1/7
72 - 17 is 4714.
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Related: 14/2-1/7 7/2-2/7 7/4-1/7 7/2-1/14 21/2-1/7 7/2-3/7 7/6-1/7 7/2-1/21 35/2-1/7 7/2-5/7 7/10-1/7 7/2-1/35 49/2-1/7 7/14-1/7 7/2-1/49
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