In a survey of teenagers, 2/3 repsonded that they got regular exercise and 4/5 of those said that walking was their main form of exercising. What fraction of the teenagers mainly exercise by walking?

Answer 1

To find the fraction of teenagers who mainly exercise by walking, we need to multiply the fractions 2/3 and 4/5:

2/3 * 4/5 = (2 * 4) / (3 * 5) = 8/15

Therefore, 8/15 of the teenagers surveyed mainly exercise by walking.