Solutions by everydaycalculation.com
1st number: 4 0/21, 2nd number: 42/80
This multiplication involving fractions can also be rephrased as "What is 84/21 of 42/80?"
8421 × 4280 is 2110.
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Related: 84/21×84/80 84/42×42/80 84/63×42/80
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