Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 3 7/21
121 + 7021 is 7121.
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Related: 2/21+70/21 1/42+70/21 1/21+70/42 3/21+70/21 1/63+70/21 1/21+70/63 5/21+70/21 7/21+70/21
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