Please help me with this math problem.

Question

150-4((3+9)/(4-1) X (14-11)^2) the answer is 6, I have tried everything and can not get that answer

Answer 1

150-4((3+9)/(4-1) X (14-11)^2)
= 150 - 4(12/3)(3)^2
= 150 - (4)(3)(9)
= 150 - 144
= 6

Answer 2

This is totally wrong how is it that 12/3 equals to 3

Answer 3

Thanks