Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 40/70 of 28/35?"
4070 × 2835 is 1635.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70×28/35 40/70×56/35 40/70×28/70 40/70×84/35
© everydaycalculation.com