Solutions by everydaycalculation.com
1st number: 1 1/3, 2nd number: 18/21
43 + 1821 is 4621.
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Related: 8/3+18/21 4/3+36/21 4/6+18/21 4/3+18/42 12/3+18/21 4/3+54/21 4/9+18/21 4/3+18/63 20/3+18/21 4/3+90/21 4/15+18/21 28/3+18/21 4/21+18/21
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