Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/3 of 1/7?"
13 × 17 is 121.
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Related: 2/3×1/7 1/3×2/7 1/6×1/7 1/3×1/14 1/3×3/7 1/9×1/7 1/3×1/21 5/3×1/7 1/3×5/7 1/15×1/7 1/3×1/35 7/3×1/7 1/21×1/7 1/3×1/49
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