Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 7/20 of 4/21?"
720 × 421 is 115.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20×4/21 7/20×8/21 7/40×4/21 7/20×4/42 21/20×4/21 7/20×12/21 7/60×4/21 7/20×4/63 35/20×4/21 7/20×20/21 49/20×4/21 7/20×28/21
© everydaycalculation.com