First, we can first reduce this fraction by dividing both the numerator and denominator by the Greatest Common Factor of 12 and 27 using 3.
\(\frac{12}{27}\) ÷ \(\frac{3}{3}\) ≈ \(\frac{4}{9}\)
4 ÷ 9 = 0.44444444444444
Therefore, \(\frac{12}{27}\) turned into a decimal is 0.44444444444444.