What is another way to express the ratio 4:5?

The ratio 4:5 can be expressed in multiple ways that maintain the same relationship between the two numbers. One way is using the phrase "4 to 5," which clearly indicates that for every 4 parts of one quantity, there are 5 parts of another. This verbal expression effectively conveys the same proportion.

Another way to represent the ratio is as a fraction, specifically written as 4/5. This fraction also reflects the same relationship because it indicates that for every 4 units of the first quantity, there are 5 units of the second quantity.

Since both "4 to 5" and "4/5" correctly express the ratio 4:5, the correct answer includes both of these forms. Thus, the choice that indicates both A and B is the most comprehensive answer, accurately representing the ratio in different formats. The options that suggest other arrangements or forms do not convey the same ratio accurately.