Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/6 of 21/81?"
16 × 2181 is 7162.
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Related: 2/6×21/81 1/6×42/81 1/12×21/81 3/6×21/81 1/6×63/81 1/18×21/81 5/6×21/81 1/30×21/81 7/6×21/81 1/42×21/81
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