Solutions by everydaycalculation.com
1st number: 1 5/10, 2nd number: 2/30
1510 - 230 is 4330.
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Related: 30/10-2/30 15/10-4/30 15/20-2/30 15/10-2/60 45/10-2/30 15/10-6/30 15/30-2/30 15/10-2/90 75/10-2/30 15/10-10/30 15/50-2/30 15/10-14/30 15/70-2/30
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