Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/40 of 21/60?"
840 × 2160 is 7100.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40×21/60 8/40×42/60 8/80×21/60 24/40×21/60 8/40×63/60 56/40×21/60
© everydaycalculation.com