Solutions by everydaycalculation.com
1st number: 4 2/10, 2nd number: 4 5/10
4210 + 4510 is 8710.
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Related: 84/10+45/10 42/10+90/10 42/20+45/10 42/10+45/20 42/30+45/10 42/10+45/30 42/50+45/10 42/10+45/50 42/70+45/10 42/10+45/70
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