Solutions by everydaycalculation.com
112 - 1821 is -6584.
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Related: 2/12-18/21 1/12-36/21 1/24-18/21 1/12-18/42 3/12-18/21 1/12-54/21 1/36-18/21 1/12-18/63 5/12-18/21 1/12-90/21 1/60-18/21 7/12-18/21 1/84-18/21
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