Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 28/45?"
2021 × 2845 is 1627.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×28/45 20/21×56/45 20/42×28/45 20/21×28/90 60/21×28/45 20/21×84/45 20/63×28/45
© everydaycalculation.com