Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 10/30 of 20/40?"
1030 × 2040 is 16.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30×20/40 10/60×20/40 10/30×20/80 10/30×60/40 10/90×20/40 50/30×20/40 70/30×20/40
© everydaycalculation.com