Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 10/18?"
921 × 1018 is 521.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×10/18 9/21×20/18 9/42×10/18 9/21×10/36 27/21×10/18 9/21×30/18 9/63×10/18 9/21×10/54 45/21×10/18 9/21×50/18 9/21×10/90 63/21×10/18 9/21×70/18
© everydaycalculation.com