Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/90 of 63/70?"
390 × 6370 is 3100.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90×63/70 9/90×63/70 15/90×63/70 21/90×63/70
© everydaycalculation.com