Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/81 of 8/10?"
2081 × 810 is 1681.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/81×8/10 20/81×16/10 20/81×8/20 60/81×8/10 20/81×24/10 20/81×8/30 20/81×40/10 20/81×8/50 20/81×56/10 20/81×8/70
© everydaycalculation.com