Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 16/20 of 21/60?"
1620 × 2160 is 725.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20×21/60 16/20×42/60 16/40×21/60 48/20×21/60 16/20×63/60 16/60×21/60 80/20×21/60
© everydaycalculation.com