Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 10/30?"
2021 × 1030 is 2063.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×10/30 20/21×20/30 20/42×10/30 20/21×10/60 60/21×10/30 20/63×10/30 20/21×10/90 20/21×50/30 20/21×70/30
© everydaycalculation.com