Solutions by everydaycalculation.com
1st number: 7 7/8, 2nd number: 2/8
638 - 28 is 618.
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Related: 63/8-4/8 63/16-2/8 63/8-2/16 63/8-6/8 63/24-2/8 63/8-2/24 63/8-10/8 63/40-2/8 63/8-2/40 63/8-14/8 63/56-2/8 63/8-2/56
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