Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/15 of 18/21?"
1215 × 1821 is 2435.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15×18/21 12/15×36/21 12/30×18/21 12/15×18/42 36/15×18/21 12/15×54/21 12/45×18/21 12/15×18/63 60/15×18/21 12/15×90/21 12/75×18/21 84/15×18/21
© everydaycalculation.com