Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/70 of 16/63?"
4070 × 1663 is 64441.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70×16/63 40/70×32/63 40/70×48/63 40/70×80/63
© everydaycalculation.com