Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/70 of 1/12?"
2170 × 112 is 140.
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Related: 42/70×1/12 21/70×2/12 21/70×1/24 63/70×1/12 21/70×3/12 21/70×1/36 21/70×5/12 21/70×1/60 21/70×7/12 21/70×1/84
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