Solutions by everydaycalculation.com
1st number: 8/30, 2nd number: 2 15/30
830 - 7530 is -6730.
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Related: 16/30-75/30 8/60-75/30 8/30-75/60 24/30-75/30 8/90-75/30 8/30-75/90 40/30-75/30 56/30-75/30
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