Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 36/42 of 40/80?"
3642 × 4080 is 37.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42×40/80 36/84×40/80
© everydaycalculation.com