Solutions by everydaycalculation.com
1st number: 6 3/10, 2nd number: 5/10
6310 + 510 is 345.
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Related: 63/20+5/10 63/10+5/20 63/10+15/10 63/30+5/10 63/10+5/30 63/10+25/10 63/50+5/10 63/10+5/50 63/10+35/10 63/70+5/10 63/10+5/70
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