Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/20 of 40/90?"
1520 × 4090 is 13.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20×40/90 15/20×80/90 15/40×40/90 45/20×40/90 15/60×40/90 75/20×40/90
© everydaycalculation.com