Solutions by everydaycalculation.com
1st number: 1 2/3, 2nd number: 12 4/5
53 - 645 is -16715.
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Related: 10/3-64/5 5/6-64/5 5/3-64/10 15/3-64/5 5/9-64/5 5/3-64/15 25/3-64/5 5/15-64/5 5/3-64/25 35/3-64/5 5/21-64/5 5/3-64/35
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