Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/21 of 2/80?"
321 × 280 is 1280.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21×2/80 3/21×4/80 3/42×2/80 9/21×2/80 3/21×6/80 3/63×2/80 15/21×2/80 3/21×10/80 3/21×14/80
© everydaycalculation.com