Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 80/90 of 9/40?"
8090 × 940 is 15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90×18/40 80/90×9/80 80/90×27/40 80/90×45/40 80/90×63/40
© everydaycalculation.com