Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 7/21 of 4/21?"
721 × 421 is 463.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/21×4/21 7/21×8/21 7/42×4/21 7/21×4/42 7/21×12/21 7/63×4/21 7/21×4/63 35/21×4/21 7/21×20/21 49/21×4/21 7/21×28/21
© everydaycalculation.com