A fraction describes how many parts of an object there are. You can use fractions to split a whole number into parts, such as halves or quarters. Fractions can be written in words or as a figure.

Fractions are an essential concept in mathematics used to represent parts of a whole. They express a number that is not whole, breaking down values into smaller, equal parts.

In construction, builders use fractions as a proportion of the whole for different building materials. A concrete mix is 1 part cement, 2 parts sand and 4 parts aggregate - a rock-like material.