Solutions by everydaycalculation.com
1st number: 12/20, 2nd number: 2 1/12
1220 - 2512 is -8960.
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Related: 24/20-25/12 12/20-50/12 12/40-25/12 12/20-25/24 36/20-25/12 12/20-75/12 12/60-25/12 12/20-25/36 60/20-25/12 12/20-25/60 84/20-25/12 12/20-25/84
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