Solutions by everydaycalculation.com
25 - 49 is -245.
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Related: 4/5-4/9 2/5-8/9 2/10-4/9 2/5-4/18 6/5-4/9 2/5-12/9 2/15-4/9 2/5-4/27 10/5-4/9 2/5-20/9 2/25-4/9 2/5-4/45 14/5-4/9 2/5-28/9 2/35-4/9 2/5-4/63
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