Here is your answer
[tex] \huge\frac{3}{8} [/tex]
EXPLANATION
[tex] \frac{1}{2} \times \frac{3}{4} [/tex]
Here, we multiply numerator of one fraction to the numerator of the other fraction and similarly the denominators of both fractions are multiplied.
[tex] \frac{1 \times 3}{2 \times 4} [/tex]
[tex] \frac{3}{8} [/tex]
HOPE IT IS USEFUL