Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 16/45 of 16/81?"
1645 × 1681 is 2563645.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/45×16/81 16/45×32/81 16/90×16/81 48/45×16/81 16/45×48/81 80/45×16/81 16/45×80/81
© everydaycalculation.com