Solutions by everydaycalculation.com
1042 - 442 is 17.
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Related: 20/42-4/42 10/42-8/42 10/84-4/42 10/42-4/84 30/42-4/42 10/42-12/42 50/42-4/42 10/42-20/42 70/42-4/42 10/42-28/42
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