L7 Adding Fractions with the Same Denominator

Introduce Year 3 pupils to adding fractions with the same denominator through this engaging and practical maths lesson designed for the Spring Fractions unit. Using visual representations, diagrams and reasoning activities, children develop confidence in combining fractions and understanding how fractions work as numbers. The lesson begins with a recap of prior learning on unit and non-unit fractions, numerators and denominators before exploring how fractions with the same denominator can be added together. Through clear teaching examples and visual models, pupils learn that when adding fractions with the same denominator, the denominator stays the same while the numerators are combined. Children use fraction diagrams, bar models and number lines to represent addition calculations and build a secure conceptual understanding of the process. Practical activities encourage pupils to solve fraction additions, complete missing number problems and explain their reasoning using correct mathematical vocabulary. Discussion tasks and guided questioning help children identify patterns and deepen their understanding of fraction addition. The lesson also addresses common misconceptions, such as adding both the numerator and denominator or misunderstanding the role of the denominator in a fraction. Ideal for whole-class teaching, intervention groups and mastery-based maths lessons, this Year 3 fractions resource includes opportunities for assessment, reasoning and collaborative learning. Fully aligned with the UK National Curriculum, the lesson supports pupils in adding and understanding fractions with the same denominator using visual and practical methods.