In a survey of teenagers, ⅔ responded that they got regular exercise, and ⅘ of those said that walking was their main form of exercise. What fraction of the teenagers mainly exercise by walking? (1 point)

Answer 1

If 2/3 of the teenagers got regular exercise, that means 2/3 * 4/4 = <<2/3*4/4=8/12>>8/12 of the teenagers got regular exercise.
If 8/12 of the teenagers got regular exercise by walking, that means 8/12 * 5/5 = <<8/12*5/5=40/60>>40/60 of the teenagers mainly exercise by walking. Answer: \boxed{\frac{4}{6}}.