Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/80 of 20/25?"
2180 × 2025 is 21100.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/80×20/25 21/80×40/25 21/80×20/50 63/80×20/25 21/80×60/25 21/80×20/75
© everydaycalculation.com