Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/63 of 21/50?"
4063 × 2150 is 415.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63×21/50 40/63×42/50 40/63×63/50
© everydaycalculation.com