Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/10 of 28/40?"
510 × 2840 is 720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 5/10×56/40 5/20×28/40 5/10×28/80 15/10×28/40 5/10×84/40 5/30×28/40 25/10×28/40 5/50×28/40 35/10×28/40 5/70×28/40
© everydaycalculation.com