Solutions by everydaycalculation.com
1st number: 8/21, 2nd number: 7 3/6
821 - 456 is -29942.
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Related: 16/21-45/6 8/21-90/6 8/42-45/6 8/21-45/12 24/21-45/6 8/63-45/6 8/21-45/18 40/21-45/6 8/21-45/30 56/21-45/6 8/21-45/42
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