Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/21 of 21/60?"
821 × 2160 is 215.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21×21/60 8/21×42/60 8/42×21/60 24/21×21/60 8/21×63/60 8/63×21/60 40/21×21/60 56/21×21/60
© everydaycalculation.com