Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/81 of 9/45?"
4081 × 945 is 881.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/81×9/45 40/81×18/45 40/81×9/90 40/81×27/45 40/81×63/45
© everydaycalculation.com