Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 42/80 of 2/5?"
4280 × 25 is 21100.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80×2/5 42/80×4/5 42/80×2/10 42/80×6/5 42/80×2/15 42/80×10/5 42/80×2/25 42/80×14/5 42/80×2/35
© everydaycalculation.com