Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/80 of 2/81?"
2180 × 281 is 71080.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/80×2/81 21/80×4/81 63/80×2/81 21/80×6/81 21/80×10/81 21/80×14/81
© everydaycalculation.com