Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 2/21 of 20/80?"
221 × 2080 is 142.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21×20/80 2/21×40/80 2/42×20/80 6/21×20/80 2/21×60/80 2/63×20/80 10/21×20/80 14/21×20/80
© everydaycalculation.com