Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/25 of 21/60?"
1525 × 2160 is 21100.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/25×21/60 15/25×42/60 15/50×21/60 45/25×21/60 15/25×63/60 15/75×21/60 75/25×21/60
© everydaycalculation.com