Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/10 of 30/80?"
810 × 3080 is 310.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10×30/80 8/10×60/80 8/20×30/80 24/10×30/80 8/10×90/80 8/30×30/80 40/10×30/80 8/50×30/80 56/10×30/80 8/70×30/80
© everydaycalculation.com