Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/70 of 40/42?"
1870 × 4042 is 1249.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70×40/42 18/70×80/42 18/70×40/84 54/70×40/42 90/70×40/42
© everydaycalculation.com