Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/90 of 20/63?"
1890 × 2063 is 463.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90×20/63 18/90×40/63 54/90×20/63 18/90×60/63
© everydaycalculation.com