Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/54 of 12/80?"
2154 × 1280 is 7120.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54×12/80 21/54×24/80 63/54×12/80 21/54×36/80 21/54×60/80 21/54×84/80
© everydaycalculation.com