Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/45 of 63/70?"
2145 × 6370 is 2150.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/45×63/70 21/90×63/70 63/45×63/70
© everydaycalculation.com