Solutions by everydaycalculation.com
1st number: 1 4/14, 2nd number: 15/21
1814 + 1521 is 21.
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Related: 36/14+15/21 18/14+30/21 18/28+15/21 18/14+15/42 54/14+15/21 18/14+45/21 18/42+15/21 18/14+15/63 90/14+15/21 18/14+75/21 18/70+15/21 18/98+15/21
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