Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 2/10 of 40/42?"
210 × 4042 is 421.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/10×40/42 2/10×80/42 2/20×40/42 2/10×40/84 6/10×40/42 2/30×40/42 2/50×40/42 14/10×40/42 2/70×40/42
© everydaycalculation.com