Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/21 of 20/90?"
321 × 2090 is 263.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21×20/90 3/21×40/90 3/42×20/90 9/21×20/90 3/21×60/90 3/63×20/90 15/21×20/90
© everydaycalculation.com