Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/42 of 35/70?"
4042 × 3570 is 1021.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42×35/70 40/84×35/70
© everydaycalculation.com