Solutions by everydaycalculation.com
1st number: 21 0/4, 2nd number: 4/45
This multiplication involving fractions can also be rephrased as "What is 84/4 of 4/45?"
844 × 445 is 2815.
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Related: 84/4×8/45 84/8×4/45 84/4×4/90 84/4×12/45 84/12×4/45 84/4×20/45 84/20×4/45 84/4×28/45 84/28×4/45
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