Solutions by everydaycalculation.com
1st number: 4 2/10, 2nd number: 8/10
4210 + 810 is 51.
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Related: 84/10+8/10 42/10+16/10 42/20+8/10 42/10+8/20 42/10+24/10 42/30+8/10 42/10+8/30 42/10+40/10 42/50+8/10 42/10+8/50 42/10+56/10 42/70+8/10 42/10+8/70
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