Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 10 3/6
121 - 636 is -43942.
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Related: 2/21-63/6 1/42-63/6 1/21-63/12 3/21-63/6 1/63-63/6 1/21-63/18 5/21-63/6 1/21-63/30 7/21-63/6 1/21-63/42
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