Solutions by everydaycalculation.com
1st number: 14/21, 2nd number: 2 7/21
1421 + 4921 is 31.
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Related: 28/21+49/21 14/21+98/21 14/42+49/21 14/21+49/42 42/21+49/21 14/63+49/21 14/21+49/63 70/21+49/21 98/21+49/21
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