Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 5 0/7
This multiplication involving fractions can also be rephrased as "What is 1/21 of 5 0/7?"
121 × 357 is 521.
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Related: 2/21×35/7 1/21×70/7 1/42×35/7 1/21×35/14 3/21×35/7 1/63×35/7 1/21×35/21 5/21×35/7 7/21×35/7 1/21×35/49
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