n a survey of teenagers, 2/3 responded that they got regular exercise, and 4/5 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 multiply the fractions representing those who responded that they got regular exercise and those who said walking was their main form of exercise.
Fraction who got regular exercise: 2/3
Fraction of those who got regular exercise who mainly walk: 4/5
To find the fraction of teenagers who mainly exercise by walking, we multiply the two fractions:
(2/3) * (4/5) = 8/15
So, the fraction of teenagers who mainly exercise by walking is 8/15.