36/90 expressed as a percentage is 40.00%. This rounded figure tells you how much of a whole the fraction represents in everyday terms.
The fraction 36/90 can be simplified to 4/10, which is the same as 2/5. Both of these forms point to the same proportion of a whole, just shown in different ways.
Seeing the percentage makes it easy to compare with other values. For example, if you scored 36 out of 90 points on a test, you achieved 40.00% of the possible marks.
In practical settings, percentages like this help you quickly understand parts of a whole, whether it’s grades, discounts, or statistics.