Solutions by everydaycalculation.com
1st number: 18/24, 2nd number: 1 6/24
1824 + 3024 is 21.
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Related: 36/24+30/24 18/24+60/24 18/48+30/24 18/24+30/48 54/24+30/24 18/24+90/24 18/72+30/24 18/24+30/72 90/24+30/24
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