Solutions by everydaycalculation.com
1st number: 1 6/12, 2nd number: 9/20
1812 + 920 is 3920.
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Related: 36/12+9/20 18/12+18/20 18/24+9/20 18/12+9/40 54/12+9/20 18/12+27/20 18/36+9/20 18/12+9/60 90/12+9/20 18/12+45/20 18/60+9/20 18/12+63/20 18/84+9/20
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