Solutions by everydaycalculation.com
1st number: 1 6/15, 2nd number: 5/21
This multiplication involving fractions can also be rephrased as "What is 21/15 of 5/21?"
2115 × 521 is 13.
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Related: 42/15×5/21 21/15×10/21 21/30×5/21 21/15×5/42 63/15×5/21 21/15×15/21 21/45×5/21 21/15×5/63 21/15×25/21 21/75×5/21 21/15×35/21
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