Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 6/21 of 10/20?"
621 × 1020 is 17.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21×10/20 6/42×10/20 6/21×10/40 18/21×10/20 6/21×30/20 6/63×10/20 6/21×10/60 30/21×10/20 6/21×50/20 42/21×10/20 6/21×70/20
© everydaycalculation.com