Solutions by everydaycalculation.com
1st number: 3 3/4, 2nd number: 4/21
This multiplication involving fractions can also be rephrased as "What is 15/4 of 4/21?"
154 × 421 is 57.
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Related: 30/4×4/21 15/4×8/21 15/8×4/21 15/4×4/42 45/4×4/21 15/4×12/21 15/12×4/21 15/4×4/63 75/4×4/21 15/4×20/21 15/20×4/21 15/4×28/21 15/28×4/21
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