Solutions by everydaycalculation.com
18 - 24 is -38.
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Related: 2/8-2/4 1/16-2/4 1/8-2/8 3/8-2/4 1/8-6/4 1/24-2/4 1/8-2/12 5/8-2/4 1/8-10/4 1/40-2/4 1/8-2/20 7/8-2/4 1/8-14/4 1/56-2/4 1/8-2/28
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