Solutions by everydaycalculation.com
14 - 47 is -928.
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Related: 2/4-4/7 1/4-8/7 1/8-4/7 1/4-4/14 3/4-4/7 1/4-12/7 1/12-4/7 1/4-4/21 5/4-4/7 1/4-20/7 1/20-4/7 1/4-4/35 7/4-4/7 1/4-28/7 1/28-4/7 1/4-4/49
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