Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 4/45?"
921 × 445 is 4105.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×4/45 9/21×8/45 9/42×4/45 9/21×4/90 27/21×4/45 9/21×12/45 9/63×4/45 45/21×4/45 9/21×20/45 63/21×4/45 9/21×28/45
© everydaycalculation.com