Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/54 of 18/42?"
2154 × 1842 is 16.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54×18/42 21/54×36/42 21/54×18/84 63/54×18/42 21/54×54/42 21/54×90/42
© everydaycalculation.com