Solutions by everydaycalculation.com
1st number: 6 4/6, 2nd number: 8 0/6
406 + 486 is 443.
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Related: 80/6+48/6 40/6+96/6 40/12+48/6 40/6+48/12 40/18+48/6 40/6+48/18 40/30+48/6 40/6+48/30 40/42+48/6 40/6+48/42
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