Solutions by everydaycalculation.com
1st number: 7 0/6, 2nd number: 8/21
This multiplication involving fractions can also be rephrased as "What is 42/6 of 8/21?"
426 × 821 is 83.
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Related: 84/6×8/21 42/6×16/21 42/12×8/21 42/6×8/42 42/6×24/21 42/18×8/21 42/6×8/63 42/6×40/21 42/30×8/21 42/6×56/21
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