Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/21 of 12/20?"
321 × 1220 is 335.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21×12/20 3/21×24/20 3/42×12/20 3/21×12/40 9/21×12/20 3/21×36/20 3/63×12/20 3/21×12/60 15/21×12/20 3/21×60/20 3/21×84/20
© everydaycalculation.com