Solutions by everydaycalculation.com
1st number: 1 6/15, 2nd number: 4/21
This multiplication involving fractions can also be rephrased as "What is 21/15 of 4/21?"
2115 × 421 is 415.
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Related: 42/15×4/21 21/15×8/21 21/30×4/21 21/15×4/42 63/15×4/21 21/15×12/21 21/45×4/21 21/15×4/63 21/15×20/21 21/75×4/21 21/15×28/21
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