Solutions by everydaycalculation.com
842 - 242 is 17.
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Related: 16/42-2/42 8/42-4/42 8/84-2/42 8/42-2/84 24/42-2/42 8/42-6/42 40/42-2/42 8/42-10/42 56/42-2/42 8/42-14/42
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