One-third of a class of 39 students took part in a math competition. How many students did not participate in the competition?
Please answer the following question by reasoning step-by-step.
26
Since one - third of the class participated, there are 39 * 1 / 3 = 13 students who participated in the competition.

This means that 39 – 13 = 26 students did not participate.

.

Thus, the answer is 26