Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/64 of 8/9?"
2164 × 89 is 724.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/64×8/9 21/64×16/9 21/64×8/18 63/64×8/9 21/64×24/9 21/64×8/27 21/64×40/9 21/64×8/45 21/64×56/9 21/64×8/63
© everydaycalculation.com