Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/81 of 18/30?"
4081 × 1830 is 827.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/81×18/30 40/81×36/30 40/81×18/60 40/81×54/30 40/81×18/90 40/81×90/30
© everydaycalculation.com