Solutions by everydaycalculation.com
89 - 15 is 3145.
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Related: 16/9-1/5 8/9-2/5 8/18-1/5 8/9-1/10 24/9-1/5 8/9-3/5 8/27-1/5 8/9-1/15 40/9-1/5 8/45-1/5 8/9-1/25 56/9-1/5 8/9-7/5 8/63-1/5 8/9-1/35
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