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ratio - definition and synonyms

 
 
 
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noun [countable] maths ratio pronunciation in American English /ˈreɪʃoʊ/
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singularratio
pluralratios
  1. a relationship between the sizes of two numbers or amounts
    a teacher-student ratio of 1:20 (=1 teacher for every 20 students)
    the ratio of someone/something to someone/something: The ratio of expenditure to revenue was an alarming 4:1.
    sex ratio (=numbers of men and women): We are aiming for a more equal sex ratio on our staff.

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