Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/72 of 4/21?"
2072 × 421 is 10189.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/72×4/21 20/72×8/21 20/72×4/42 60/72×4/21 20/72×12/21 20/72×4/63 20/72×20/21 20/72×28/21
© everydaycalculation.com