Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/60 of 7/9?"
2160 × 79 is 49180.
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Related: 42/60×7/9 21/60×14/9 21/60×7/18 63/60×7/9 21/60×21/9 21/60×7/27 21/60×35/9 21/60×7/45 21/60×49/9 21/60×7/63
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