Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/90 of 6/9?"
2190 × 69 is 745.
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Related: 42/90×6/9 21/90×12/9 21/90×6/18 63/90×6/9 21/90×18/9 21/90×6/27 21/90×30/9 21/90×6/45 21/90×42/9 21/90×6/63
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