To add the fractions \( \frac{11}{16} \) and \( \frac{3}{16} \), you can simply add the numerators since they have the same denominator:
\[ \frac{11}{16} + \frac{3}{16} = \frac{11 + 3}{16} = \frac{14}{16} \]
Now, you can simplify \( \frac{14}{16} \) by dividing both the numerator and denominator by their greatest common divisor, which is 2:
\[ \frac{14 \div 2}{16 \div 2} = \frac{7}{8} \]
So, \( \frac{11}{16} + \frac{3}{16} = \frac{7}{8} \).