38/90 as a percentage is 42.22%. This rounded figure tells you how much of a whole 38 parts out of 90 represent in everyday terms.
The fraction itself, 38/90, can be simplified to 19/45, but the decimal value stays the same—about 0.422. Thinking of it as a percent makes it easier to compare with other numbers you might see on a test or in a report.
In real‑world situations, you might use this percentage to describe a score, a portion of a budget, or any other scenario where you need to show a part of a whole in a clear, understandable way.