Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/21 of 20/63?"
1821 × 2063 is 40147.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21×20/63 18/21×40/63 18/42×20/63 54/21×20/63 18/21×60/63 18/63×20/63 90/21×20/63
© everydaycalculation.com