Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 15/81 of 15/70?"
1581 × 1570 is 5126.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/81×15/70 15/81×30/70 45/81×15/70 15/81×45/70 75/81×15/70 15/81×75/70
© everydaycalculation.com