Solutions by everydaycalculation.com
1st number: 4/10, 2nd number: 4 5/10
410 + 4510 is 4910.
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Related: 8/10+45/10 4/10+90/10 4/20+45/10 4/10+45/20 12/10+45/10 4/30+45/10 4/10+45/30 20/10+45/10 4/50+45/10 4/10+45/50 28/10+45/10 4/70+45/10 4/10+45/70
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