The image shows the question "O que razão?". It appears to be written in Portuguese. The problem is to translate the question into English and understand what mathematical concept it is asking about.

1. Problem Description

The image shows the question "O que razão?". It appears to be written in Portuguese. The problem is to translate the question into English and understand what mathematical concept it is asking about.

2. Solution Steps

Step 1: Translate the question from Portuguese to English. The Portuguese phrase "O que razão?" translates to "What is a ratio?" or "What is the reason?". In a mathematical context, it likely refers to the concept of a ratio.

Step 2: Define what a ratio is. A ratio is a comparison of two quantities by division. It can be expressed in several ways, such as $a$ to $b$, $a:b$, or $\frac{a}{b}$, where $a$ and $b$ are the two quantities being compared and $b \neq 0$. A ratio shows the relative sizes of two or more values.

3. Final Answer

The question asks: "What is a ratio?".

A ratio is a comparison of two quantities by division. It expresses the relative sizes of two or more values. It can be written as $a$ to $b$, $a:b$, or $\frac{a}{b}$.