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Note 130 – Using fractions and percentages in writing

Rules for using fractions and percentages in a sentence

The basic rule is – don’t mix them up in the same sentence.

Example: 25% of my work colleagues have children, but only one out of every three of them have more than one child.

Better: 25% of my work colleagues have children, but only 33% of those people have more than one child.

Just as good: A quarter of my work colleagues have children, but only one third of those people have more than one child.

Rules for hyphenating fractions

In his book The Queen’s English, Bernard C Lamb explains that when a fraction is used as an adjective e.g. the cup is three-quarters full, it should be hyphenated.  If ‘three quarters’ is used as a noun phrase, as in “three quarters of the cup is  full,” the word ‘three quarters’ would not have a hyphen.

That’s it for today. If you have any questions about this blog, please leave me a comment.

Don’t forget that you can subscribe to receive my daily blogs by email so that you don’t miss any. Just click ‘sign me up’ on the home page. Alternatively you can follow my blogs on Twitter!/madeirasandra or my new Tips and Luxuries Facebook page. Requests for future blogs (punctuation/grammar/writing tips) are always welcome.

Until tomorrow…


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Reference list:

Bernard C. Lamb The Queen’s English (2010), UK


About Sandra Madeira

I am a full-time working mum with a passion for writing and inspiring others. Subjects I tend to blog about are life skills, parenting, decluttering, worklife balance, etc. At the moment I am on a decluttering mission creating space in my house, garden and mind. I have challenged myself to do at least ten minutes a day and write about it. Have a good day! Sandra Freelance Writer


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