Solutions by everydaycalculation.com
1st number: 12/42, 2nd number: 1 33/42
1242 - 7542 is -32.
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Related: 24/42-75/42 12/84-75/42 12/42-75/84 36/42-75/42 60/42-75/42 84/42-75/42
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