Answer:
[tex] - \frac{3}{8} [/tex]
Step-by-step explanation:
First, we change both denominators to the LCM (lowest common multiple) which is 8.
[tex] - \frac{3}{4} + \frac{3}{8} = - \frac{6}{8} + \frac{3}{8} [/tex]
Since the denominators are the same, we can add the numerators.
[tex] \frac{ - 6 + 3}{8} [/tex]
[tex] \frac{ - 3}{8} [/tex]
or it can be written as
[tex] - \frac{3}{8} [/tex]
