Solutions by everydaycalculation.com
1st number: 1 9/21, 2nd number: 1/21
3021 - 121 is 2921.
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Related: 60/21-1/21 30/21-2/21 30/42-1/21 30/21-1/42 90/21-1/21 30/21-3/21 30/63-1/21 30/21-1/63 30/21-5/21 30/21-7/21
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