Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/45 of 40/70?"
145 × 4070 is 4315.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45×40/70 1/45×80/70 1/90×40/70 3/45×40/70 5/45×40/70 7/45×40/70
© everydaycalculation.com