Solutions by everydaycalculation.com
1st number: 4/21, 2nd number: 2 5/8
421 - 218 is -409168.
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Related: 8/21-21/8 4/21-42/8 4/42-21/8 4/21-21/16 12/21-21/8 4/21-63/8 4/63-21/8 4/21-21/24 20/21-21/8 4/21-21/40 28/21-21/8 4/21-21/56
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