Remember PEMDAS (Parentheses, Exponents, Multiplication ⇔ Division, Addition ⇔ Subtraction)
Keeping that in mind, you'll start by doing the work insides the parentheses.
[tex] \frac{1}{4} [/tex] (8 x 3) Multiply 8 and 3
[tex] \frac{1}{4} [/tex] (24) Multiply [tex] \frac{1}{4} [/tex] and 24
[tex] \frac{24}{4} [/tex] Divide
6
[tex] \frac{1}{4} [/tex] (8 x 3) = 6