Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/5 of 1/7?"
15 × 17 is 135.
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Related: 2/5×1/7 1/5×2/7 1/10×1/7 1/5×1/14 3/5×1/7 1/5×3/7 1/15×1/7 1/5×1/21 1/5×5/7 1/25×1/7 1/5×1/35 7/5×1/7 1/35×1/7 1/5×1/49
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