Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/40 of 16/18?"
2140 × 1618 is 715.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40×16/18 21/40×32/18 21/80×16/18 21/40×16/36 63/40×16/18 21/40×48/18 21/40×16/54 21/40×80/18 21/40×16/90
© everydaycalculation.com