Solutions by everydaycalculation.com
1st number: 1 3/4, 2nd number: 5/21
74 - 521 is 12784.
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Related: 14/4-5/21 7/4-10/21 7/8-5/21 7/4-5/42 21/4-5/21 7/4-15/21 7/12-5/21 7/4-5/63 35/4-5/21 7/4-25/21 7/20-5/21 49/4-5/21 7/4-35/21 7/28-5/21
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