Solutions by everydaycalculation.com
1st number: 8/21, 2nd number: 7 1/9
821 - 649 is -42463.
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Related: 16/21-64/9 8/42-64/9 8/21-64/18 24/21-64/9 8/63-64/9 8/21-64/27 40/21-64/9 8/21-64/45 56/21-64/9 8/21-64/63
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