Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 21/35?"
2021 × 2135 is 47.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×21/35 20/21×42/35 20/42×21/35 20/21×21/70 60/21×21/35 20/21×63/35 20/63×21/35
© everydaycalculation.com