Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 14/21 of 14/20?"
1421 × 1420 is 715.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21×14/20 14/21×28/20 14/42×14/20 14/21×14/40 42/21×14/20 14/21×42/20 14/63×14/20 14/21×14/60 70/21×14/20 14/21×70/20 98/21×14/20 14/21×98/20
© everydaycalculation.com