Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/9 of 40/80?"
39 × 4080 is 16.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9×40/80 3/18×40/80 3/27×40/80 15/9×40/80 3/45×40/80 21/9×40/80 3/63×40/80
© everydaycalculation.com