Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/80 of 70/81?"
2080 × 7081 is 35162.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80×70/81 60/80×70/81
© everydaycalculation.com