Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/54 of 6/45?"
2154 × 645 is 7135.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54×6/45 21/54×12/45 21/54×6/90 63/54×6/45 21/54×18/45 21/54×30/45 21/54×42/45
© everydaycalculation.com