Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 7/21 of 20/90?"
721 × 2090 is 227.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/21×20/90 7/21×40/90 7/42×20/90 7/21×60/90 7/63×20/90 35/21×20/90 49/21×20/90
© everydaycalculation.com