Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/40 of 40/63?"
1540 × 4063 is 521.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40×40/63 15/40×80/63 15/80×40/63 45/40×40/63 75/40×40/63
© everydaycalculation.com