Solutions by everydaycalculation.com
815 - 49 is 445.
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Related: 16/15-4/9 8/15-8/9 8/30-4/9 8/15-4/18 24/15-4/9 8/15-12/9 8/45-4/9 8/15-4/27 40/15-4/9 8/15-20/9 8/75-4/9 8/15-4/45 56/15-4/9 8/15-28/9 8/15-4/63
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