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.
[tex]\frac{12}{27}[/tex] ÷ [tex]\frac{3}{3}[/tex] ≈ [tex]\frac{4}{9}[/tex]
4 ÷ 9 = 0.44444444444444
Therefore, [tex]\frac{12}{27}[/tex] turned into a decimal is 0.44444444444444.