Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/28 of 40/81?"
428 × 4081 is 40567.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28×40/81 4/28×80/81 4/56×40/81 12/28×40/81 4/84×40/81 20/28×40/81
© everydaycalculation.com