Solutions by everydaycalculation.com
1st number: 24/30, 2nd number: 2 3/30
2430 - 6330 is -1310.
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Related: 48/30-63/30 24/60-63/30 24/30-63/60 72/30-63/30 24/90-63/30 24/30-63/90
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