Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/90 of 63/70?"
2090 × 6370 is 15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90×63/70 60/90×63/70
© everydaycalculation.com