Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/45 of 15/90?"
4045 × 1590 is 427.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45×15/90 40/45×30/90 40/90×15/90 40/45×45/90 40/45×75/90
© everydaycalculation.com