Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 1 6/21
1021 - 2721 is -1721.
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Related: 20/21-27/21 10/21-54/21 10/42-27/21 10/21-27/42 30/21-27/21 10/21-81/21 10/63-27/21 10/21-27/63 50/21-27/21 70/21-27/21
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