Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 3/15 of 21/45?"
315 × 2145 is 775.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15×21/45 3/15×42/45 3/30×21/45 3/15×21/90 9/15×21/45 3/15×63/45 3/45×21/45 3/75×21/45 21/15×21/45
© everydaycalculation.com