Solutions by everydaycalculation.com
1415 - 615 is 815.
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Related: 28/15-6/15 14/15-12/15 14/30-6/15 14/15-6/30 42/15-6/15 14/15-18/15 14/45-6/15 14/15-6/45 70/15-6/15 14/15-30/15 14/75-6/15 14/15-6/75 98/15-6/15 14/15-42/15
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