Which number is irrtarional? 0, -5, -1 1/6, p

Question

0
-5
-1 1/6
π

Answer 1

Pi π is irrational.  What that means is that it cannot be written as one integer (...-3, -2, -1, 0, 1, 2, 3...) divided by another.  Pi is a transcendental number.  All the rest on the list can be written as a fraction:  0/3 is 0; -5/1 = -5; and so on.