Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/40 of 4/21?"
540 × 421 is 142.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40×4/21 5/40×8/21 5/80×4/21 5/40×4/42 15/40×4/21 5/40×12/21 5/40×4/63 25/40×4/21 5/40×20/21 35/40×4/21 5/40×28/21
© everydaycalculation.com