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14 - 18 is 18.
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Related: 2/4-1/8 1/4-2/8 1/8-1/8 1/4-1/16 3/4-1/8 1/4-3/8 1/12-1/8 1/4-1/24 5/4-1/8 1/4-5/8 1/20-1/8 1/4-1/40 7/4-1/8 1/4-7/8 1/28-1/8 1/4-1/56
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