Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/21 of 30/45?"
321 × 3045 is 221.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21×30/45 3/21×60/45 3/42×30/45 3/21×30/90 9/21×30/45 3/21×90/45 3/63×30/45 15/21×30/45
© everydaycalculation.com