Solutions by everydaycalculation.com
1st number: 15/30, 2nd number: 2 4/30
1530 - 6430 is -4930.
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Related: 15/60-64/30 15/30-64/60 45/30-64/30 15/90-64/30 15/30-64/90 75/30-64/30
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