Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/21 of 21/28?"
1821 × 2128 is 914.
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Related: 36/21×21/28 18/21×42/28 18/42×21/28 18/21×21/56 54/21×21/28 18/21×63/28 18/63×21/28 18/21×21/84 90/21×21/28
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