Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/63 of 60/81?"
1863 × 6081 is 40189.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63×60/81 54/63×60/81 90/63×60/81
© everydaycalculation.com