1/3*(7.61+5.57*3.83)^(-2/3)*5.57*3.83/(7.61 + 5.57*3.83)^(1/3)

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.