Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/63 of 40/45?"
4063 × 4045 is 320567.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63×40/45 40/63×80/45 40/63×40/90
© everydaycalculation.com