Solutions by everydaycalculation.com
1st number: 5 1/3, 2nd number: 3 9/12
163 - 4512 is 1912.
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Related: 32/3-45/12 16/3-90/12 16/6-45/12 16/3-45/24 48/3-45/12 16/9-45/12 16/3-45/36 80/3-45/12 16/15-45/12 16/3-45/60 16/21-45/12 16/3-45/84
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