Identify all values that are irrational.

-1/3

-3

13

Pi/3

pi/3 irrational

Step-by-step explanation:

A rational number is the ratio of two integers

-1/3 is two integers rational

-3 can be written as - 3/1 rational

13 can be written as 13/1 rational

pi/3 pi itself is irrational and cannot be written as an integer