Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 7/21 of 12/30?"
721 × 1230 is 215.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/21×12/30 7/21×24/30 7/42×12/30 7/21×12/60 7/21×36/30 7/63×12/30 7/21×12/90 35/21×12/30 7/21×60/30 49/21×12/30 7/21×84/30
© everydaycalculation.com