Solutions by everydaycalculation.com
1st number: 2/21, 2nd number: 10 3/6
221 - 636 is -43742.
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Related: 4/21-63/6 2/42-63/6 2/21-63/12 6/21-63/6 2/63-63/6 2/21-63/18 10/21-63/6 2/21-63/30 14/21-63/6 2/21-63/42
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