Solutions by everydaycalculation.com
1st number: 1/12, 2nd number: 3 9/21
112 - 7221 is -28184.
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Related: 2/12-72/21 1/24-72/21 1/12-72/42 3/12-72/21 1/36-72/21 1/12-72/63 5/12-72/21 1/60-72/21 7/12-72/21 1/84-72/21
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