Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/20 of 12/21?"
320 × 1221 is 335.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20×12/21 3/20×24/21 3/40×12/21 3/20×12/42 9/20×12/21 3/20×36/21 3/60×12/21 3/20×12/63 15/20×12/21 3/20×60/21 21/20×12/21 3/20×84/21
© everydaycalculation.com