Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 16/70 of 16/90?"
1670 × 1690 is 641575.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/70×16/90 16/70×32/90 48/70×16/90 16/70×48/90 80/70×16/90 16/70×80/90
© everydaycalculation.com