Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/21 of 5/80?"
421 × 580 is 184.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21×5/80 4/21×10/80 4/42×5/80 12/21×5/80 4/21×15/80 4/63×5/80 20/21×5/80 4/21×25/80 28/21×5/80 4/21×35/80
© everydaycalculation.com