Solutions by everydaycalculation.com
1st number: 4 5/10, 2nd number: 4 0/10
4510 + 4010 is 172.
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Related: 90/10+40/10 45/10+80/10 45/20+40/10 45/10+40/20 45/30+40/10 45/10+40/30 45/50+40/10 45/10+40/50 45/70+40/10 45/10+40/70
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