Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 1 9/21
121 + 3021 is 3121.
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Related: 2/21+30/21 1/21+60/21 1/42+30/21 1/21+30/42 3/21+30/21 1/21+90/21 1/63+30/21 1/21+30/63 5/21+30/21 7/21+30/21
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