Solutions by everydaycalculation.com
1st number: 1 6/21, 2nd number: 10/21
2721 + 1021 is 3721.
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Related: 54/21+10/21 27/21+20/21 27/42+10/21 27/21+10/42 81/21+10/21 27/21+30/21 27/63+10/21 27/21+10/63 27/21+50/21 27/21+70/21
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