Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/20 of 4/5?"
520 × 45 is 15.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20×4/5 5/20×8/5 5/40×4/5 5/20×4/10 15/20×4/5 5/20×12/5 5/60×4/5 5/20×4/15 25/20×4/5 5/20×20/5 5/20×4/25 35/20×4/5 5/20×28/5 5/20×4/35
© everydaycalculation.com