Solutions by everydaycalculation.com
1st number: 4 1/5, 2nd number: 5/21
This multiplication involving fractions can also be rephrased as "What is 21/5 of 5/21?"
215 × 521 is 11.
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Related: 42/5×5/21 21/5×10/21 21/10×5/21 21/5×5/42 63/5×5/21 21/5×15/21 21/15×5/21 21/5×5/63 21/5×25/21 21/25×5/21 21/5×35/21 21/35×5/21
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