Solutions by everydaycalculation.com
89 - 512 is 1736.
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Related: 16/9-5/12 8/9-10/12 8/18-5/12 8/9-5/24 24/9-5/12 8/9-15/12 8/27-5/12 8/9-5/36 40/9-5/12 8/9-25/12 8/45-5/12 8/9-5/60 56/9-5/12 8/9-35/12 8/63-5/12 8/9-5/84
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