Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 28/42?"
921 × 2842 is 27.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×28/42 9/21×56/42 9/42×28/42 9/21×28/84 27/21×28/42 9/21×84/42 9/63×28/42 45/21×28/42 63/21×28/42
© everydaycalculation.com