Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/70 of 40/63?"
670 × 4063 is 8147.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70×40/63 6/70×80/63 18/70×40/63 30/70×40/63 42/70×40/63
© everydaycalculation.com