Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/25 of 6/63?"
2125 × 663 is 225.
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Related: 42/25×6/63 21/25×12/63 21/50×6/63 63/25×6/63 21/25×18/63 21/75×6/63 21/25×30/63 21/25×42/63
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