Solutions by everydaycalculation.com
1st number: 2/30, 2nd number: 1 15/30
230 - 4530 is -4330.
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Related: 4/30-45/30 2/30-90/30 2/60-45/30 2/30-45/60 6/30-45/30 2/90-45/30 2/30-45/90 10/30-45/30 14/30-45/30
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