Solutions by everydaycalculation.com
1st number: 4/21, 2nd number: 3 1/9
421 - 289 is -18463.
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Related: 8/21-28/9 4/21-56/9 4/42-28/9 4/21-28/18 12/21-28/9 4/21-84/9 4/63-28/9 4/21-28/27 20/21-28/9 4/21-28/45 28/21-28/9 4/21-28/63
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