 # Decimals, fractions, and percentages

Decimals

In most Spanish-speaking countries, a comma indicates the decimal place:

•  0.5 (point five)= 0,5 (cero coma cinco)

•  12.76 (twelve point seven six)= 12,76 (doce coma setenta y seis)

Some Latin American countries, however, use a point as in English:

•  0.5 (point five)= 0.5 (cero punto cinco)

•  12.76 (twelve point seven six)= 12.76 (doce punto setenta y seis)

Fractions

1/2 = un medio 1/8 = un octavo

1/3 = un tercio 1/9 = un noveno

1/4 = un cuarto 1/10 = un décimo

1/5 = un quinto 2/3 = dos tercios

1/6 = un sexto 3/4 = tres cuartos

1/7 = un séptimo

Any fraction smaller than a tenth is formed by adding the suffix -avo to the cardinal number:

1/11= un onceavo 1/20 = un veinteavo

1/12= un doceavo 1/30 = un treintavo

7/16= siete dieciseisavos 1/40 = un cuarentavo

But:

1/100 = un centésimo 1/1000 = un milésimo

The less common fractions are expressed as follows:

3/52 = tres sobre cincuenta y dos

7/102 = siete sobre ciento dos

When not used in a strictly mathematical context, fractions are expressed in a different way:

•  half an apple = media manzana or la mitad de una manzana

•  a third of the mixture = la tercera parte de la mezcla

•  three quarters of the population = las tres cuartas de la población

Percentages

The article is used before a percentage in Spanish:

•  10% of the population = el 10% (diez por ciento) de la población

•  prices have gone up by 15% = los precios han subido un 15% (un quince por ciento)