Solutions by everydaycalculation.com
1st number: 4 1/5, 2nd number: 4/21
This multiplication involving fractions can also be rephrased as "What is 21/5 of 4/21?"
215 × 421 is 45.
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Related: 42/5×4/21 21/5×8/21 21/10×4/21 21/5×4/42 63/5×4/21 21/5×12/21 21/15×4/21 21/5×4/63 21/5×20/21 21/25×4/21 21/5×28/21 21/35×4/21
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