Solutions by everydaycalculation.com
1st number: 5 1/3, 2nd number: 5 9/15
163 - 8415 is -415.
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Related: 32/3-84/15 16/6-84/15 16/3-84/30 48/3-84/15 16/9-84/15 16/3-84/45 80/3-84/15 16/15-84/15 16/3-84/75 16/21-84/15
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