Solutions by everydaycalculation.com
1st number: 5 1/3, 2nd number: 7/15
163 - 715 is 7315.
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Related: 32/3-7/15 16/3-14/15 16/6-7/15 16/3-7/30 48/3-7/15 16/3-21/15 16/9-7/15 16/3-7/45 80/3-7/15 16/3-35/15 16/15-7/15 16/3-7/75 16/3-49/15 16/21-7/15
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