easy
In the fraction one-half, two is the denominator.
What does Denominator mean?
A denominator is the bottom number in a fraction.
Dictionary definition
The bottom number in a fraction that shows how many equal parts make the whole.
Example sentences
Denominator in a sentence
medium
The denominator tells how many equal parts the whole is divided into.
hard
To compare fractions, students often look for a common denominator.
Writing practice
Ready to write your own? Study the examples, then practice denominator in a sentence with Sentence Builder checklist feedback.
Quick practice
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Practice the meaning of Denominator
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What is a denominator?
A denominator is the bottom number that shows how many equal parts make the whole.
Practice 2
Which sentence uses denominator correctly?
This sentence uses denominator to name the bottom number in a fraction.
Practice 3
Which word names the top number in a fraction?
The numerator is the top number, while the denominator is the bottom number.
Practice complete
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Pronunciation coach
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Denominator
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Sounds like
dih · nom · uh · nay · ter · strongest beat: nom
Tap each sound part, then blend the whole word together.
Learn
WordDenominator.
Partnoun.
MeaningDenominator means A denominator is the bottom number in a fraction.
ExampleExample: In the fraction one-half, two is the denominator.
Word breakdown
5 syllables. Say each part, then blend the word.
- Syllables
- dih · nom · uh · nay · ter
- Strongest beat
- nom
- Ending
- ter
- Tip
- Put a little extra energy on nom.
Your turn
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Synonyms
Words like Denominator
bottom numberA simple phrase for the denominator in a fraction.
divisorUse carefully in math when talking about a number used to divide.
Antonyms
Opposite words
numeratorThe top number in a fraction.
whole numberA number without a fraction part.
Synonym practice
Want to practice denominator synonyms in context? Try a Synonym Search question like "The denominator sat below the line in the fraction," then compare close word choices. Practice denominator synonyms.
Word family
Denominator word family
Base word
denominator
noun
denominator
The bottom number in a fraction.
noun
denominators
More than one denominator.
Related words
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Student support
Understand Denominator
Hint for students
A denominator is the bottom number in a fraction.
Common mix-up
Denominator is not the same as numerator. Denominator means a denominator is the bottom number in a fraction.
Try it in class or at home
Read this model sentence: The denominator tells how many equal parts the whole is divided into. Clue words: whole, tells, how. Underline clue words that show why denominator fits instead of numerator. Now write one new sentence that shows denominator without using the word denominator. Ask: Does my sentence clearly show denominator?
Teacher prompt
Ask students to explain this model sentence: "The denominator tells how many equal parts the whole is divided into." Why does denominator fit better than numerator?
Learning activities
Practice Denominator and explore more word games
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