Any number that can be written as a fraction is rational -- therefore, 4/9 squared is rational (it can still be written as a fraction even if you multiply it by itself).
Chat with our AI personalities
It is equal to 21/2 which is a rational number
4/3 is irrational because it is as follows 4/3=1.333 (1.333 continuing )
It is a rational number
0.4444
that depends on the number. sqrt(2) is irrational, sqrt(4)=2 is rational