Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 2 3/21
1021 + 4521 is 5521.
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Related: 20/21+45/21 10/21+90/21 10/42+45/21 10/21+45/42 30/21+45/21 10/63+45/21 10/21+45/63 50/21+45/21 70/21+45/21
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