Solutions by everydaycalculation.com
1st number: 1 8/10, 2nd number: 1 5/10
1810 - 1510 is 310.
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Related: 36/10-15/10 18/10-30/10 18/20-15/10 18/10-15/20 54/10-15/10 18/10-45/10 18/30-15/10 18/10-15/30 90/10-15/10 18/10-75/10 18/50-15/10 18/10-15/50 18/70-15/10 18/10-15/70
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