Solutions by everydaycalculation.com
1st number: 5/12, 2nd number: 1 19/21
512 - 4021 is -12584.
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Related: 10/12-40/21 5/12-80/21 5/24-40/21 5/12-40/42 15/12-40/21 5/36-40/21 5/12-40/63 25/12-40/21 5/60-40/21 35/12-40/21 5/84-40/21
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