Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/40 of 2/3?"
2140 × 23 is 720.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40×2/3 21/40×4/3 21/80×2/3 21/40×2/6 63/40×2/3 21/40×6/3 21/40×2/9 21/40×10/3 21/40×2/15 21/40×14/3 21/40×2/21
© everydaycalculation.com