Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/81 of 15/20?"
581 × 1520 is 5108.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/81×15/20 5/81×30/20 5/81×15/40 15/81×15/20 5/81×45/20 5/81×15/60 25/81×15/20 5/81×75/20 35/81×15/20
© everydaycalculation.com