Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 28/90?"
921 × 2890 is 215.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×28/90 9/21×56/90 9/42×28/90 27/21×28/90 9/21×84/90 9/63×28/90 45/21×28/90 63/21×28/90
© everydaycalculation.com