Solutions by everydaycalculation.com
1st number: 1 2/3, 2nd number: 15/21
53 - 1521 is 2021.
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Related: 10/3-15/21 5/3-30/21 5/6-15/21 5/3-15/42 15/3-15/21 5/3-45/21 5/9-15/21 5/3-15/63 25/3-15/21 5/3-75/21 5/15-15/21 35/3-15/21 5/21-15/21
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