Solutions by everydaycalculation.com
1215 - 515 is 715.
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Related: 24/15-5/15 12/15-10/15 12/30-5/15 12/15-5/30 36/15-5/15 12/45-5/15 12/15-5/45 60/15-5/15 12/15-25/15 12/75-5/15 12/15-5/75 84/15-5/15 12/15-35/15
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