Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/60 of 4/9?"
2160 × 49 is 745.
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Related: 42/60×4/9 21/60×8/9 21/60×4/18 63/60×4/9 21/60×12/9 21/60×4/27 21/60×20/9 21/60×4/45 21/60×28/9 21/60×4/63
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