Solutions by everydaycalculation.com
1st number: 9 1/3, 2nd number: 9 1/7
283 - 647 is 421.
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Related: 56/3-64/7 28/6-64/7 28/3-64/14 84/3-64/7 28/9-64/7 28/3-64/21 28/15-64/7 28/3-64/35 28/21-64/7 28/3-64/49
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