Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/72 of 4/10?"
2172 × 410 is 760.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72×4/10 21/72×8/10 21/72×4/20 63/72×4/10 21/72×12/10 21/72×4/30 21/72×20/10 21/72×4/50 21/72×28/10 21/72×4/70
© everydaycalculation.com