Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/81 of 42/90?"
2081 × 4290 is 28243.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/81×42/90 20/81×84/90 60/81×42/90
© everydaycalculation.com