Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/56 of 8/9?"
2156 × 89 is 13.
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Related: 42/56×8/9 21/56×16/9 21/56×8/18 63/56×8/9 21/56×24/9 21/56×8/27 21/56×40/9 21/56×8/45 21/56×56/9 21/56×8/63
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