Primary maths: Fractions, decimals and percentages conversion

Sian Evans
24th May 2018
Child working on fractions, decimals and percentage conversion in primary maths lesson

Top ways to explore fractions, decimals and percentages conversion in your primary maths lessons

After you've mastered the essential concepts, with help from our fractions post, decimals post and percentages post, it'll be time to tackle FDP conversion with your classes. From classic, tried-and-tested conversion charts to imaginative ways of consolidating understanding, we've hand-picked some of the very best lessons that the Tes community have to offer. Have a look today…

Classroom activities

Encourage students to get stuck in to tricky calculations with confidence using these worksheets, booklets and rich tasks. What better way to develop fluency in these key skills?


Converting Fractions, Decimals and Percentages | Worksheets/Printables

These sheets look at basic conversions. The first looks at the simplest of the conversions; decimals to percentages. It is crucial that students understand that percentages, decimals and fractions refer to the same things.

The next worksheet introduces the idea of converting fractions to decimals by using the concept of dividing by 10, 100 or 1000. At the bottom of the page we offer a challenge; the denominators of the fractions are factors of 100. On the first differentiated sheet we offer a hint to students for how to complete this part.

Finally we have a whole sheet dedicated to a conversion table.

Available as part of a bundle at a discount price which also includes a revision and checklist sheet.

You may also like:
Fractominoes - Fraction Dominoes
Fraction Solitaire Card Game
Fractions, Decimals and Percentage Matching Activity
By LittleStreams

Equivalence of fractions, decimals and percentages

A rich task with clear instructions and built in extension on equivalence of fractions, decimals and percentages.

Students fly through these questions without and enjoy the task. Works well if the sheets are laminated and can be written on with dry wipe pens. You can also print this off from the powerpoint file to create your own "Supersize" resource.
By STremlett

Converting Fractions, Decimals and Percentages

An exercise to practice converting between fractions, decimals and percentages.

By ewarwood

Fractions, decimals and percentages

This is a workbook for children who have already been introduced to Fractions, Decimals and Percentages. Looking at them as a Happy Family and how they are all connected to each other.

Numeracy for Key Stage 2. This could be used as a revision booklet or as a homework booklet.

Topics include
Conversion of Fraction to Decimal, Decimal to Percentage and Percentage to Fraction.
Find % of a quantity
Card Game x3 involving clues and Problem solving
The use of tables
At The Castle....3 Worksheets
By teachercellar

Lesson ideas

Take advantage of these clear, visual explanations that break down the step-by-step process of converting between fractions, decimals and percentages.


Ordering Fractions, Decimals and Percentages

Fully differentiated and scaffolded lesson on ordering FDP. Starts of with Converting FDP, Recap on Ordering Decimals then into the main lesson.
With differentiated questions and a great plenary.

An NQT, so all feedback welcomed!
By rpwelch32

Fractions Decimals Percentages conversion lesson

A comprehensive lesson that takes students through each conversion, with examples and questions throughout. The final task allows students to improve fluency by filling in the gaps of a conversion table or those that have mastered the topic to develop their problem solving skills through worded problems. Answers included for self/peer assessment. This can be split over two lessons or adapted to one lesson, depending ability.
By lively10

Fraction Decimal Equivalence Presentation

This is a comprehensive presentation on converting fractions into their equivalent decimals and vice versa. There are lots of key questions and concepts dealt with, as well as direct questions pupils can answer. The presentation runs directly into my Fraction Decimal Puzzle Grids resource, but can be used as a stand-alone for your own lesson.
By Ravenking

Fractions, Decimals and Percentages

A short P/P presentation to aid students make links between fractions, decimals and %. May be edited to use familar names within the classroom/teaching staff!
By joolzbee


Ignore anyone who says FDP conversion can't be fun! These puzzles and games are exactly the sort of treat your class will love, whilst simultaneously working hard to solve these problems.


Year 6 Fractions, decimals and percentage game

This is a fraction,decimal and percentage game designed for Y6 - perfect for SATs revision. I found this game worked really well with my children in Year 6. Firstly, the game makes the children think they aren't doing maths (sneaky!) and their naturally competitive nature ensured for a brilliant outcome! Most importantly, as fractions, decimals and percentage work was combined together, the children really had to apply their knowledge.

To play, children will need a dice and the question cards cut out in colour and put into piles. Children roll their dice and choose a corresponding card. Children work out the answer, checking it against the answer cards. They score points for correct answers.
By Becky-Stevie

Fractions, Decimals, Percentages Equivalence Codebreaker

Just a quick homework, starter or plenary which gives a punchline to a lame joke.
By alutwyche

Fractions, Decimals, and Percents Tarsia Puzzle Activity

Use these math puzzles for your students to practice converting between fractions, decimals, and percents. The large puzzle pieces are great to be used as a fun outdoor extension or recap activity however the small puzzles can easily be used as a full lesson activity. I have used these to great success over the last few weeks. My children have loved them and are now pros at converting fractions, percents, and decimals!


2 x differentiated Tarsia puzzles each containing
- Muddled up puzzle worksheet
- Complete puzzle worksheet
- Large puzzle pieces

Check out our other Math Tarsia Puzzles!

Multiplying and Dividing by 10, 100, and 1000

Fractions of Numbers


By Saving The Teachers

Fractions, Decimals and Percentages Game

An interactive PowerPoint activity or game for finding equivalent fractions, decimals and percentages.
The PowerPoint file contains an embedded Excel sheet in order that new questions can be generated.
If you like this free resource then check out some of my premium resources.
Follow me on Twitter and Pinterest @hatchtag73.

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