Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/15 of 6/21?"
315 × 621 is 235.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15×6/21 3/15×12/21 3/30×6/21 3/15×6/42 9/15×6/21 3/15×18/21 3/45×6/21 3/15×6/63 3/15×30/21 3/75×6/21 21/15×6/21 3/15×42/21
© everydaycalculation.com