Solutions by everydaycalculation.com
1st number: 21 0/4, 2nd number: 4 2/10
This multiplication involving fractions can also be rephrased as "What is 84/4 of 4 2/10?"
844 × 4210 is 4415.
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Related: 84/4×84/10 84/8×42/10 84/4×42/20 84/12×42/10 84/4×42/30 84/20×42/10 84/4×42/50 84/28×42/10 84/4×42/70
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