Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/21 of 20/63?"
521 × 2063 is 1001323.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21×20/63 5/21×40/63 5/42×20/63 15/21×20/63 5/21×60/63 5/63×20/63 25/21×20/63 35/21×20/63
© everydaycalculation.com