Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 25/70?"
2021 × 2570 is 50147.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×25/70 20/21×50/70 20/42×25/70 60/21×25/70 20/21×75/70 20/63×25/70
© everydaycalculation.com