Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/21 of 3/20?"
321 × 320 is 3140.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21×3/20 3/21×6/20 3/42×3/20 3/21×3/40 9/21×3/20 3/21×9/20 3/63×3/20 3/21×3/60 15/21×3/20 3/21×15/20 3/21×21/20
© everydaycalculation.com