Question

In A class survey, 1/9 of the class had blue eyes. What fraction of the class did not have blue eyes?

Answer 1

9/9 (full class) - 1/9 (with blue eyes) = 8/9 did not have blue eyes

Answer 2

If there were 1/9 blue eyes, the remaining are the ones without blue eyes.

Therefore 8/9 is the remaining amount.