Solutions by everydaycalculation.com
1st number: 1 1/3, 2nd number: 5/21
43 - 521 is 2321.
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Related: 8/3-5/21 4/3-10/21 4/6-5/21 4/3-5/42 12/3-5/21 4/3-15/21 4/9-5/21 4/3-5/63 20/3-5/21 4/3-25/21 4/15-5/21 28/3-5/21 4/3-35/21 4/21-5/21
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