This worksheet is about answering word problems and puzzles.
In a room full of people,
1/8 of them wear glasses.
|1/6 of them wear contact lenses, and the rest have perfect eyesight.|
What fraction of them have perfect eyesight?
1/8 + 1/6 = 3/24 + 4/24 = 7/24
So 17/24 (24 - 7) have perfect eyesight.