Solutions by everydaycalculation.com
1st number: 1 10/20, 2nd number: 9/20
3020 + 920 is 3920.
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Related: 60/20+9/20 30/20+18/20 30/40+9/20 30/20+9/40 90/20+9/20 30/20+27/20 30/60+9/20 30/20+9/60 30/20+45/20 30/20+63/20
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