Solutions by everydaycalculation.com
1st number: 1 5/10, 2nd number: 4/30
1510 - 430 is 4130.
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Related: 30/10-4/30 15/10-8/30 15/20-4/30 15/10-4/60 45/10-4/30 15/10-12/30 15/30-4/30 15/10-4/90 75/10-4/30 15/10-20/30 15/50-4/30 15/10-28/30 15/70-4/30
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