Solutions by everydaycalculation.com
1st number: 2/30, 2nd number: 1 9/12
230 - 2112 is -10160.
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Related: 4/30-21/12 2/30-42/12 2/60-21/12 2/30-21/24 6/30-21/12 2/30-63/12 2/90-21/12 2/30-21/36 10/30-21/12 2/30-21/60 14/30-21/12 2/30-21/84
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