Solutions by everydaycalculation.com
1st number: 8/30, 2nd number: 3 0/30
830 - 9030 is -4115.
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Related: 16/30-90/30 8/60-90/30 8/30-90/60 24/30-90/30 8/90-90/30 40/30-90/30 56/30-90/30
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