Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/20 of 18/21?"
1820 × 1821 is 2735.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20×18/21 18/20×36/21 18/40×18/21 18/20×18/42 54/20×18/21 18/20×54/21 18/60×18/21 18/20×18/63 90/20×18/21 18/20×90/21
© everydaycalculation.com