Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/81 of 2/42?"
2181 × 242 is 181.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/81×2/42 21/81×4/42 21/81×2/84 63/81×2/42 21/81×6/42 21/81×10/42 21/81×14/42
© everydaycalculation.com