Solutions by everydaycalculation.com
1st number: 8/21, 2nd number: 6 3/12
821 - 7512 is -49384.
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Related: 16/21-75/12 8/42-75/12 8/21-75/24 24/21-75/12 8/63-75/12 8/21-75/36 40/21-75/12 8/21-75/60 56/21-75/12 8/21-75/84
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