Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 8/21 of 16/63?"
821 × 1663 is 1281323.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21×16/63 8/21×32/63 8/42×16/63 24/21×16/63 8/21×48/63 8/63×16/63 40/21×16/63 8/21×80/63 56/21×16/63
© everydaycalculation.com