Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/70 of 5/12?"
2170 × 512 is 18.
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Related: 42/70×5/12 21/70×10/12 21/70×5/24 63/70×5/12 21/70×15/12 21/70×5/36 21/70×25/12 21/70×5/60 21/70×35/12 21/70×5/84
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