Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 9/18?"
2021 × 918 is 1021.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×9/18 20/42×9/18 20/21×9/36 60/21×9/18 20/21×27/18 20/63×9/18 20/21×9/54 20/21×45/18 20/21×9/90 20/21×63/18
© everydaycalculation.com