Solutions by everydaycalculation.com
1st number: 1 5/10, 2nd number: 4/10
1510 + 410 is 1910.
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Related: 30/10+4/10 15/10+8/10 15/20+4/10 15/10+4/20 45/10+4/10 15/10+12/10 15/30+4/10 15/10+4/30 75/10+4/10 15/10+20/10 15/50+4/10 15/10+4/50 15/10+28/10 15/70+4/10 15/10+4/70
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