Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/72 of 1/40?"
4072 × 140 is 172.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72×1/40 40/72×2/40 40/72×1/80 40/72×3/40 40/72×5/40 40/72×7/40
© everydaycalculation.com