Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 40/84?"
921 × 4084 is 1049.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×40/84 9/21×80/84 9/42×40/84 27/21×40/84 9/63×40/84 45/21×40/84 63/21×40/84
© everydaycalculation.com