Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/21 of 8/72?"
421 × 872 is 4189.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21×8/72 4/21×16/72 4/42×8/72 12/21×8/72 4/21×24/72 4/63×8/72 20/21×8/72 4/21×40/72 28/21×8/72 4/21×56/72
© everydaycalculation.com