Solutions by everydaycalculation.com
1st number: 1 8/10, 2nd number: 5/20
1810 + 520 is 4120.
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Related: 36/10+5/20 18/10+10/20 18/20+5/20 18/10+5/40 54/10+5/20 18/10+15/20 18/30+5/20 18/10+5/60 90/10+5/20 18/10+25/20 18/50+5/20 18/10+35/20 18/70+5/20
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