Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/42 of 21/60?"
1542 × 2160 is 18.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42×21/60 15/42×42/60 15/84×21/60 45/42×21/60 15/42×63/60 75/42×21/60
© everydaycalculation.com