Solutions by everydaycalculation.com
1st number: 4 0/10, 2nd number: 4 0/10
4010 + 4010 is 81.
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Related: 80/10+40/10 40/10+80/10 40/20+40/10 40/10+40/20 40/30+40/10 40/10+40/30 40/50+40/10 40/10+40/50 40/70+40/10 40/10+40/70
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