Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/5 of 21/63?"
35 × 2163 is 15.
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Related: 6/5×21/63 3/5×42/63 3/10×21/63 9/5×21/63 3/15×21/63 15/5×21/63 3/25×21/63 21/5×21/63 3/35×21/63
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