Solutions by everydaycalculation.com
1st number: 5/10, 2nd number: 7 5/10
510 + 7510 is 81.
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Related: 5/20+75/10 5/10+75/20 15/10+75/10 5/30+75/10 5/10+75/30 25/10+75/10 5/50+75/10 5/10+75/50 35/10+75/10 5/70+75/10 5/10+75/70
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