Solutions by everydaycalculation.com
1st number: 2 0/10, 2nd number: 4 2/10
2010 + 4210 is 315.
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Related: 40/10+42/10 20/10+84/10 20/10+42/20 60/10+42/10 20/30+42/10 20/10+42/30 20/50+42/10 20/10+42/50 20/70+42/10 20/10+42/70
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