Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/21 of 15/18?"
1221 × 1518 is 1021.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21×15/18 12/21×30/18 12/42×15/18 12/21×15/36 36/21×15/18 12/21×45/18 12/63×15/18 12/21×15/54 60/21×15/18 12/21×75/18 12/21×15/90 84/21×15/18
© everydaycalculation.com