Solutions by everydaycalculation.com
18 - 112 is 124.
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Related: 2/8-1/12 1/8-2/12 1/16-1/12 1/8-1/24 3/8-1/12 1/8-3/12 1/24-1/12 1/8-1/36 5/8-1/12 1/8-5/12 1/40-1/12 1/8-1/60 7/8-1/12 1/8-7/12 1/56-1/12 1/8-1/84
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