Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/30 of 40/60?"
2130 × 4060 is 715.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30×40/60 21/30×80/60 21/60×40/60 63/30×40/60 21/90×40/60
© everydaycalculation.com