How to Say "one-eighth" in Spanish
The Spanish word for “one-eighth” is “octavo” — B1 level.
English → SpanishB1
nounB1
a fraction representing one of eight equal parts

Examples
Solo me queda un octavo de la tarta.
I only have one-eighth of the cake left.
Añade un octavo de taza de azúcar.
Add one-eighth of a cup of sugar.
Corta la madera en octavos.
Cut the wood into eighths.
Fractions in Spanish
When 'octavo' is used as a fraction (a noun), it is always masculine. You say 'un octavo' even if you are talking about an eighth of a feminine thing like 'una pizza'.
Pluralizing Fractions
Related Translations
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