24/30 = 80%
A value like 24/30 can show up as a quiz score, a survey result, or a progress update. It means someone got 80% of the questions right, or completed most of a task.
You can picture it as 8 out of every 10 parts, with about two parts left over. That makes it easy to recognize as four-fifths of the whole.
One common confusion is treating 80% as “almost all” and forgetting that one-fifth is still missing. In a test with 30 questions, that missing part would be 6 questions.