How do you use 22 over 7?

Answer 1

Since (pi) is an irrational number and you can never write it down exactly, you

need something that's close that you can use whenever you need to use (pi).

The closer approximation you use in place of (pi), the closer your answer will be

to the exact truth.

22/7 is a very handy number to use where you need (pi). It's easy to handle, and if you

use 22/7, then your answer is only about 0.04% wrong, which is darn good accuracy.