Solutions by everydaycalculation.com
1st number: 3 1/2, 2nd number: 4/21
72 + 421 is 15542.
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Related: 14/2+4/21 7/2+8/21 7/4+4/21 7/2+4/42 21/2+4/21 7/2+12/21 7/6+4/21 7/2+4/63 35/2+4/21 7/2+20/21 7/10+4/21 49/2+4/21 7/2+28/21 7/14+4/21
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