Solutions by everydaycalculation.com
1st number: 5/12, 2nd number: 3 12/21
512 - 7521 is -26584.
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Related: 10/12-75/21 5/24-75/21 5/12-75/42 15/12-75/21 5/36-75/21 5/12-75/63 25/12-75/21 5/60-75/21 35/12-75/21 5/84-75/21
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