Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 9/21 of 12/36?"
921 × 1236 is 17.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21×12/36 9/21×24/36 9/42×12/36 9/21×12/72 27/21×12/36 9/63×12/36 45/21×12/36 9/21×60/36 63/21×12/36 9/21×84/36
© everydaycalculation.com