Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/7 of 15/81?"
57 × 1581 is 25189.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/7×15/81 5/7×30/81 5/14×15/81 15/7×15/81 5/7×45/81 5/21×15/81 25/7×15/81 5/7×75/81 5/35×15/81 35/7×15/81 5/49×15/81
© everydaycalculation.com