Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/15 of 6/21?"
515 × 621 is 221.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15×6/21 5/15×12/21 5/30×6/21 5/15×6/42 5/15×18/21 5/45×6/21 5/15×6/63 25/15×6/21 5/15×30/21 5/75×6/21 35/15×6/21 5/15×42/21
© everydaycalculation.com