In 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)
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To find the fraction of teenagers who mainly exercise by walking, we need to multiply the fraction of teenagers who get regular exercise by the fraction who mainly exercise by walking.
Fraction of teenagers who get regular exercise = 2/3
Fraction of those who mainly exercise by walking = 4/5
Multiplying the two fractions gives:
2/3 * 4/5 = 8/15
Therefore, 8/15 of the teenagers mainly exercise by walking.