denominador
/denominaˈdoɾ/masculine
The Spanish word for "denominator" is denominador.
denominador is a masculine noun used in mathematics to refer to the number or expression written below the line in a fraction.
Meaning: number or expression written below the line in a fraction (noun)
Which one should you use?
While denominador is the technical term, you might hear the informal phrase número de abajo to mean "bottom number". In a mathematical context, denominador is the counterpart to the numerador (numerator).
How does it change in a sentence?
The plural form of denominador is denominadores.
How do you pronounce it?
/denominaˈdoɾ/
Did you know?
- Spanish speakers use the word denominación to refer to the face value of a banknote or coin. This is the same root found in denominador, treating the value of money as the 'name' of the currency unit.
- In Spanish, the word denominar can be used as a sophisticated synonym for 'to call' or 'to name'. This reflects the mathematical role of the denominador as the part that names the unit of the fraction.
- The word denominador uses the same suffix as words for professions like escritor for 'writer' or pintor for 'painter'. This treats the mathematical function as an 'agent' performing an action.
Examples in context
- El denominador de la fracción es 5The denominator of the fraction is 5
- El número de abajo de la fracción es 3The bottom number of the fraction is 3
- El número de abajo de la fracción es 9The bottom number of the fraction is 9
- En esta fracción, el numerador representa las manzanas rojas y el denominador corresponde al total de manzanas.In this fraction, the numerator represents the red apples, and the denominator corresponds to the total number of apples.
- Recuerda que, al realizar operaciones con fracciones, siempre necesitamos encontrar el denominador común.Remember that when performing operations with fractions, we always need to find the common denominator.
- Para convertir esta fracción mixta en una fracción impropia, multiplica el denominador por la parte entera y suma el resultado al numerador.To convert this mixed fraction into an improper fraction, multiply the denominator by the whole part and add the result to the numerator.
- El denominador de la fracción es cinco.The denominator of the fraction is five.
- El denominador de la fracción es diez.The denominator of the fraction is ten.
- Debes cambiar el denominador para sumar las fracciones.You must change the denominator to add the fractions.
- No puedes tener un denominador igual a cero.You cannot have a denominator equal to zero.
Example conversation
Elena and Daniel are studying math together.
- ElenaDaniel, ¿está bien este denominador?Daniel, is this denominator correct?
- DanielSí, Elena, el denominador es correcto.Yes, Elena, the denominator is correct.
- ElenaAhora voy a sumar los numeradores.Now I am going to add the numerators.
- DanielPerfecto, así se resuelve el problema.Perfect, that is how you solve the problem.
Sources
- Wiktionary, “denominator” translations and entries denominador, CC BY-SA 4.0, dump of 2026-09-26.
