Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/5 of 20/81?"
45 × 2081 is 1681.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5×20/81 4/5×40/81 4/10×20/81 12/5×20/81 4/5×60/81 4/15×20/81 20/5×20/81 4/25×20/81 28/5×20/81 4/35×20/81
© everydaycalculation.com