Solutions by everydaycalculation.com
1st number: 10/42, 2nd number: 1 39/42
1042 - 8142 is -7142.
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Related: 20/42-81/42 10/84-81/42 10/42-81/84 30/42-81/42 50/42-81/42 70/42-81/42
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