Solutions by everydaycalculation.com
1st number: 1 8/10, 2nd number: 3/20
1810 + 320 is 3920.
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Related: 36/10+3/20 18/10+6/20 18/20+3/20 18/10+3/40 54/10+3/20 18/10+9/20 18/30+3/20 18/10+3/60 90/10+3/20 18/10+15/20 18/50+3/20 18/10+21/20 18/70+3/20
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