Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/90 of 28/50?"
2190 × 2850 is 49375.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90×28/50 21/90×56/50 63/90×28/50 21/90×84/50
© everydaycalculation.com