Solutions by everydaycalculation.com
27 - 38 is -556.
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Related: 4/7-3/8 2/7-6/8 2/14-3/8 2/7-3/16 6/7-3/8 2/7-9/8 2/21-3/8 2/7-3/24 10/7-3/8 2/7-15/8 2/35-3/8 2/7-3/40 14/7-3/8 2/7-21/8 2/49-3/8 2/7-3/56
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