In a survey of teenagers, 23 responded that they got regular exercise, and 45 of those said that walking was their main form of exercise. What fraction of the teenagers mainly exercise by walking?(1 point)
To find the fraction of teenagers who mainly exercise by walking, we need to divide the number of teenagers who mainly exercise by walking by the total number of teenagers in the survey.
The number of teenagers who mainly exercise by walking is 45.
The total number of teenagers in the survey is 23.
Fraction = Number of teenagers who mainly exercise by walking / Total number of teenagers in the survey
= 45 / 23
Therefore, the fraction of teenagers who mainly exercise by walking is 45/23.