Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 2 3/21
121 + 4521 is 4621.
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Related: 2/21+45/21 1/21+90/21 1/42+45/21 1/21+45/42 3/21+45/21 1/63+45/21 1/21+45/63 5/21+45/21 7/21+45/21
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