Fractions are a fundamental concept in mathematics that represent a part of a whole or a ratio between two quantities. They are used to express quantities that are not whole numbers, allowing for precise measurement and comparison.
The symbol commonly used to represent fractions is a horizontal line between the numerator and denominator. For example, the fraction 3/4 is represented with a horizontal line separating the numbers 3 and 4. This symbol visually indicates the division between the parts and the whole.