Answer
$\frac{7}{34}$
Work Step by Step
Step 1: $\frac{15}{34}-\frac{8}{34}$
Step 2: $\frac{15}{34}+\frac{(-8)}{34}$
Step 2: $\frac{15+(-8)}{34}$
Step 3: $\frac{7}{34}$
Step 4: No further simplification possible, so the answer is $\frac{7}{34}$.