There are 78 pink beads and 9 purple beads on Kelly's necklace. What is the ratio of the number of purple beads to the total number of beads?

Write your answer as a fraction. Use a slash ( / ) to separate the numerator and denominator.

The total number of beads is 78 + 9 = <<78+9=87>>87.

The ratio of the number of purple beads to the total number of beads is 9/87. Answer: \boxed{\dfrac{9}{87}}.