Solutions by everydaycalculation.com
1st number: 1/12, 2nd number: 2 2/20
112 - 4220 is -12160.
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Related: 2/12-42/20 1/12-84/20 1/24-42/20 1/12-42/40 3/12-42/20 1/36-42/20 1/12-42/60 5/12-42/20 1/60-42/20 7/12-42/20 1/84-42/20
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