Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/70 of 1/9?"
2170 × 19 is 130.
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Related: 42/70×1/9 21/70×2/9 21/70×1/18 63/70×1/9 21/70×3/9 21/70×1/27 21/70×5/9 21/70×1/45 21/70×7/9 21/70×1/63
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