Solutions by everydaycalculation.com
1st number: 8/28, 2nd number: 7 7/8
828 - 638 is -42556.
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Related: 16/28-63/8 8/56-63/8 8/28-63/16 24/28-63/8 8/84-63/8 8/28-63/24 40/28-63/8 8/28-63/40 56/28-63/8 8/28-63/56
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