Solutions by everydaycalculation.com
19 - 45 is -3145.
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Related: 2/9-4/5 1/9-8/5 1/18-4/5 1/9-4/10 3/9-4/5 1/9-12/5 1/27-4/5 1/9-4/15 5/9-4/5 1/9-20/5 1/45-4/5 1/9-4/25 7/9-4/5 1/9-28/5 1/63-4/5 1/9-4/35
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