A survey was conducted to determine students' preferred learning style. The distribution of responses from the sample participants are summarized as follows:

Auditory learning style 17
Visual learning style 20
Kinesthetic learning style 13
Write a ratio that compares the number of students who preferred a visual learning style to the number of student-participants of the survey. Write your answer in the simplest form of a fraction

The number of students who preferred a visual learning style is 20.

The total number of student-participants in the survey is 17 + 20 + 13 = 50.

Therefore, the ratio of students who preferred a visual learning style to the total number of student-participants is 20:50.

Simplifying this ratio to its simplest form as a fraction gives us 2/5.

So, the ratio comparing the number of students who preferred a visual learning style to the number of student-participants in the survey is 2/5.