Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/45 of 35/40?"
4045 × 3540 is 79.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45×35/40 40/45×70/40 40/90×35/40 40/45×35/80
© everydaycalculation.com