Solutions by everydaycalculation.com
1st number: 5 1/3, 2nd number: 10 3/6
163 - 636 is -316.
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Related: 32/3-63/6 16/6-63/6 16/3-63/12 48/3-63/6 16/9-63/6 16/3-63/18 80/3-63/6 16/15-63/6 16/3-63/30 16/21-63/6 16/3-63/42
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