Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/21 of 12/63?"
621 × 1263 is 8147.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21×12/63 6/21×24/63 6/42×12/63 18/21×12/63 6/21×36/63 6/63×12/63 30/21×12/63 6/21×60/63 42/21×12/63 6/21×84/63
© everydaycalculation.com