Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/60 of 7/8?"
2160 × 78 is 49160.
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Related: 42/60×7/8 21/60×14/8 21/60×7/16 63/60×7/8 21/60×21/8 21/60×7/24 21/60×35/8 21/60×7/40 21/60×49/8 21/60×7/56
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