Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/60 of 40/70?"
1860 × 4070 is 635.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/60×40/70 18/60×80/70 54/60×40/70 90/60×40/70
© everydaycalculation.com