Solutions by everydaycalculation.com
142 - 1242 is -1142.
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Related: 2/42-12/42 1/42-24/42 1/84-12/42 1/42-12/84 3/42-12/42 1/42-36/42 5/42-12/42 1/42-60/42 7/42-12/42 1/42-84/42
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