Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/56 of 20/40?"
4056 × 2040 is 514.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56×20/40 40/56×20/80 40/56×60/40
© everydaycalculation.com