Solutions by everydaycalculation.com
1415 - 815 is 25.
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Related: 28/15-8/15 14/15-16/15 14/30-8/15 14/15-8/30 42/15-8/15 14/15-24/15 14/45-8/15 14/15-8/45 70/15-8/15 14/15-40/15 14/75-8/15 14/15-8/75 98/15-8/15 14/15-56/15
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