Solutions by everydaycalculation.com
1st number: 1 7/21, 2nd number: 21/90
This multiplication involving fractions can also be rephrased as "What is 28/21 of 21/90?"
2821 × 2190 is 1445.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21×21/90 28/21×42/90 28/42×21/90 84/21×21/90 28/21×63/90 28/63×21/90
© everydaycalculation.com