Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/80 of 8/10?"
580 × 810 is 120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/80×8/10 5/80×16/10 5/80×8/20 15/80×8/10 5/80×24/10 5/80×8/30 25/80×8/10 5/80×40/10 5/80×8/50 35/80×8/10 5/80×56/10 5/80×8/70
© everydaycalculation.com