Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/9 of 21/35?"
39 × 2135 is 15.
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Related: 6/9×21/35 3/9×42/35 3/18×21/35 3/9×21/70 3/9×63/35 3/27×21/35 15/9×21/35 3/45×21/35 21/9×21/35 3/63×21/35
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