Solutions by everydaycalculation.com
1st number: 3/20, 2nd number: 1 8/12
320 - 2012 is -9160.
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Related: 6/20-20/12 3/20-40/12 3/40-20/12 3/20-20/24 9/20-20/12 3/20-60/12 3/60-20/12 3/20-20/36 15/20-20/12 3/20-20/60 21/20-20/12 3/20-20/84
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