Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 25/81 of 4/20?"
2581 × 420 is 581.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/81×4/20 25/81×8/20 25/81×4/40 75/81×4/20 25/81×12/20 25/81×4/60 25/81×28/20
© everydaycalculation.com