Solutions by everydaycalculation.com
1st number: 8/42, 2nd number: 3 9/12
842 - 4512 is -29984.
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Related: 16/42-45/12 8/42-90/12 8/84-45/12 8/42-45/24 24/42-45/12 8/42-45/36 40/42-45/12 8/42-45/60 56/42-45/12 8/42-45/84
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