Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 2/20 of 2/21?"
220 × 221 is 1105.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20×2/21 2/20×4/21 2/40×2/21 2/20×2/42 6/20×2/21 2/20×6/21 2/60×2/21 2/20×2/63 10/20×2/21 2/20×10/21 14/20×2/21 2/20×14/21
© everydaycalculation.com