Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 1 8/12
2120 - 2012 is -3760.
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Related: 42/20-20/12 21/20-40/12 21/40-20/12 21/20-20/24 63/20-20/12 21/20-60/12 21/60-20/12 21/20-20/36 21/20-20/60 21/20-20/84
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