Solutions by everydaycalculation.com
1st number: 1 9/21, 2nd number: 10/21
3021 - 1021 is 2021.
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Related: 60/21-10/21 30/21-20/21 30/42-10/21 30/21-10/42 90/21-10/21 30/21-30/21 30/63-10/21 30/21-10/63 30/21-50/21 30/21-70/21
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