Solutions by everydaycalculation.com
1st number: 3 1/21, 2nd number: 6/7
This multiplication involving fractions can also be rephrased as "What is 64/21 of 6/7?"
6421 × 67 is 12849.
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Related: 64/21×12/7 64/42×6/7 64/21×6/14 64/21×18/7 64/63×6/7 64/21×6/21 64/21×30/7 64/21×6/35 64/21×42/7 64/21×6/49
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