Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/90 of 5/20?"
2190 × 520 is 7120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90×5/20 21/90×10/20 21/90×5/40 63/90×5/20 21/90×15/20 21/90×5/60 21/90×25/20 21/90×35/20
© everydaycalculation.com