Interlingua has used the comma as its decimal separator since the publication of the Interlingua Grammar in 1951 .
The three most spoken international auxiliary languages , Ido , Esperanto , and Interlingua , all use the comma as the decimal separator .
Interlingua has used the comma as Interlingua 's decimal separator since the publication of the Interlingua Grammar in 1951 .
The three most spoken international auxiliary languages , Ido , Esperanto , and Interlingua , all use the comma as the decimal separator .