Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 16/42 of 15/81?"
1642 × 1581 is 40567.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42×15/81 16/42×30/81 16/84×15/81 48/42×15/81 16/42×45/81 80/42×15/81 16/42×75/81
© everydaycalculation.com