Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/54 of 6/90?"
2154 × 690 is 7270.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54×6/90 21/54×12/90 63/54×6/90 21/54×18/90 21/54×30/90 21/54×42/90
© everydaycalculation.com