Please explain how to solve it, and solve it od course.

Answer:
[tex]\frac{37}{3}[/tex]
Step-by-step explanation:
We need to find a fraction for [tex]12.\bar{3}[/tex].
[tex]\frac{1}{3}=0.\bar{3}[/tex] ( I hope this is clear)
To get the enumerator we need to multiply 12 with 3 which equals to 36. ([tex]\frac{36}{3}=12[/tex]). Let’s add the [tex]\frac{1}{3}[/tex] from the beginning and we get [tex]\frac{36}{3}+\frac{1}{3}=\frac{37}{3}=12\frac{1}{3}=12.\bar{3}[/tex]