Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 10/20 of 2/80?"
1020 × 280 is 180.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20×4/80 10/40×2/80 30/20×2/80 10/20×6/80 10/60×2/80 50/20×2/80 10/20×10/80 70/20×2/80 10/20×14/80
© everydaycalculation.com