## Content description

Solve problems involving addition and subtraction of fractions with the same or related denominators (ACMNA126)

Source: Australian Curriculum, Assessment and Reporting Authority (ACARA)

### The addition of fractions with the same denominator

The addition of two fractions with the same denominators can be thought of as steps on the number line.

To add \(\dfrac{3}{8} \text{and} \dfrac{4}{8}\) we start at \(\dfrac{3}{8}\) and take a step of \(\dfrac{4}{8} \text{to get} \dfrac{7}{8}\).

We write \(\dfrac{3}{8} + \dfrac{4}{8} = \dfrac{7}{8}\).