Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 35/90?"
2021 × 3590 is 1027.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×35/90 20/21×70/90 20/42×35/90 60/21×35/90 20/63×35/90
© everydaycalculation.com