Add fractions with the same denominator
I can add fractions with the same denominator.
Add fractions with the same denominator
I can add fractions with the same denominator.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- If fractions have the same denominator they can be added.
- If 2 plus 3 is equal to 5 then 2 one sevenths plus 3 one sevenths is equal to 5 one sevenths.
- To add fractions with the same denominator you use the language of unitising.
Keywords
Units - The unit is one of something that defines the ‘one’ you are counting in.
Denominator - A denominator is the bottom number in a fraction. It shows how many parts a whole has been divided into.
Numerator - A numerator is the top number in a fraction. It shows how many parts we have.
Common misconception
Typically, many children add both the numerators and denominators together to get the sum.
Pupils need to grasp units and unitising. Get them to move around the classroom/school performing simple additions with different sets of objects. Revisit fractions explaining that they're using unit fractions and this is shown by the denominator.
To help you plan your year 3 maths lesson on: Add fractions with the same denominator, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 3 maths lesson on: Add fractions with the same denominator, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Composition of non-unit fractions: addition and subtraction unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Starter quiz
6 Questions



Exit quiz
6 Questions


