Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 4/21 of 6/42?"
421 × 642 is 4147.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21×6/42 4/21×12/42 4/42×6/42 4/21×6/84 12/21×6/42 4/21×18/42 4/63×6/42 20/21×6/42 4/21×30/42 28/21×6/42
© everydaycalculation.com