Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 7/21 of 14/35?"
721 × 1435 is 215.
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Related: 14/21×14/35 7/21×28/35 7/42×14/35 7/21×14/70 7/21×42/35 7/63×14/35 35/21×14/35 7/21×70/35 49/21×14/35 7/21×98/35
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