Question

15
$-\frac{7}{12} + \frac{1}{2}$

Explanation:

Step1: Find a common denominator

The denominators are 12 and 2. The least common denominator is 12. Rewrite $\frac{1}{2}$ with denominator 12: $\frac{1}{2}=\frac{1\times6}{2\times6}=\frac{6}{12}$

Step2: Add the fractions

Now we have $-\frac{7}{12}+\frac{6}{12}$. Add the numerators: $-7 + 6=-1$. So the result is $\frac{-1}{12}=-\frac{1}{12}$

Answer:

$-\frac{1}{12}$