Solutions by everydaycalculation.com
1st number: 3 1/2, 2nd number: 4/7
72 - 47 is 4114.
Related: 14/2-4/7 7/2-8/7 7/4-4/7 7/2-4/14 21/2-4/7 7/2-12/7 7/6-4/7 7/2-4/21 35/2-4/7 7/2-20/7 7/10-4/7 7/2-4/35 49/2-4/7 7/2-28/7 7/14-4/7 7/2-4/49
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