Solutions by everydaycalculation.com
1st number: 1/8, 2nd number: 7 7/8
18 + 638 is 81.
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Related: 2/8+63/8 1/16+63/8 1/8+63/16 3/8+63/8 1/24+63/8 1/8+63/24 5/8+63/8 1/40+63/8 1/8+63/40 7/8+63/8 1/56+63/8 1/8+63/56
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