Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 28/42 of 20/81?"
2842 × 2081 is 40243.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42×20/81 28/42×40/81 28/84×20/81 84/42×20/81 28/42×60/81
© everydaycalculation.com