Solutions by everydaycalculation.com
1st number: 2/30, 2nd number: 3 0/30
230 - 9030 is -4415.
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Related: 4/30-90/30 2/60-90/30 2/30-90/60 6/30-90/30 2/90-90/30 10/30-90/30 14/30-90/30
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