Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/21 of 4/45?"
421 × 445 is 16945.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21×4/45 4/21×8/45 4/42×4/45 4/21×4/90 12/21×4/45 4/21×12/45 4/63×4/45 20/21×4/45 4/21×20/45 28/21×4/45 4/21×28/45
© everydaycalculation.com