Ordering Fractions, Decimals & Percentages (AQA GCSE Maths): Revision Note
Exam code: 8300
Ordering FDP
How do I put fractions in order of size?
- When comparing only fractions, write them over a lowest common denominator - For - , the lowest common denominator is 60 
- So change them to - and then order them by their numerators 
- From smallest to largest: 
- Rewrite in their original form: 
 
How do I put fractions, decimals and percentages in order of size?
- When comparing a mixture of fractions, decimals and percentages, change everything into decimals 



Which symbols can I use?
- Rather than just listing values in order, symbols can be used to compare them - For example, 
 
- Recall that - means greater than and - means greater than or equal to - Similarly, - means less than and - means less than or equal to 
 
- You may also see - and - (which means "not equal to") 
Examiner Tips and Tricks
A calculator can be used to quickly convert any quantities into decimals.
E.g. A fraction can be entered as a division.
Worked Example
Without use of a calculator, write these numbers in order, starting with the smallest.
                                       
                                       
                                 
As they are all fractions, write them with a common denominator
The lowest common denominator is be 75
Rewrite each fraction with a denominator of 75
                        
                      
                 
            
Compare and write in order from smallest to largest
Rewrite in their original form
Worked Example
Without use of a calculator, write these numbers in the spaces below.
                                       
                                     
                                     
..... < ..... < ..... < .....
As there is a mixture of fractions, decimals, and percentages, rewrite each as a decimal
0.8 is already a decimal
Convert 78% to a decimal by dividing by 100
Convert  to a decimal by either using short division, or halving three times
so 
Convert  to a decimal by using short division
so 
Write them all with 3 decimal places to determine the order
Rewrite the decimals in order
Rewrite in their original form, and recall that < means "less than", so the smallest value will be first
If a calculator was allowed for this question, it could be used to find  and 
 more easily
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