Simplify: `1/(-12)+2/(-15)`

Explanation

To simplify the expression \( \frac{1}{-12} + \frac{2}{-15} \), we can follow these steps:

### Step 1: Rewrite the fractions
We can rewrite the fractions to make the negative signs more explicit:
\[ \frac{1}{-12} = -\frac{1}{12} \quad \text{and} \quad \frac{2}{-15} = -\frac{2}{15} \]
So the expression becomes:
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