Learn Russian Fractional Numbers

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Understanding Russian Fractional Numbers
Fractional numbers in Russian are used to describe parts of a whole, just like in English when we say 'one half' or 'three quarters.' These numbers help us talk about things that aren't whole, like pieces of a pie or parts of a group.
Basic Structure of Fractional Numbers
In Russian, fractional numbers are usually made up of two parts: the numerator (the top part of the fraction) and the denominator (the bottom part of the fraction). The numerator is a cardinal number, like 'one' or 'two,' and the denominator is an ordinal number, like 'first' or 'second.'
Important Points
  • The numerator is a regular number (один, два, три).
  • The denominator is an ordinal number in the genitive case (второй becomes вторых).
  • When the numerator is 'one,' the denominator is singular (одна треть).
  • When the numerator is more than one, the denominator is plural (две трети).
Special Rules for Certain Denominators
Some fractional numbers have special forms. For example, 'half' is 'половина,' but often just 'пол-' is used, like 'полтора' for 'one and a half.'
Examples
  • одна треть (one third)
  • две трети (two thirds)
  • половина (half)
Using Fractional Numbers in Sentences
When you use fractional numbers in sentences, you need to make sure the rest of the sentence matches. This means matching the gender and case of the words.
Examples
  • Я съел одну треть торта. (I ate one third of the cake.)
  • У нас осталось две трети пирога. (We have two thirds of the pie left.)
  • Она выпила половину сока. (She drank half of the juice.)
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