Solutions by everydaycalculation.com
1st number: 7 1/2, 2nd number: 21 1/3
152 - 643 is -836.
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Related: 30/2-64/3 15/4-64/3 15/2-64/6 45/2-64/3 15/6-64/3 15/2-64/9 75/2-64/3 15/10-64/3 15/2-64/15 15/14-64/3 15/2-64/21
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