Miguel spent 12 hour practicing his saxophone. He spent 18 of that time practicing his solo. What fraction of an hour did Miguel spend practicing his solo?

¡Hola mi nombre es maria! Durante los últimos tres días, he tenido estos síntomas. Creo que podría tener un resfriado o gripe. A veces es muy doloroso por la noche. Tampoco puedo comer nada porque tengo ganas de vomitar. No puedo salir a la luz porque puede ser muy cegador. Por último, he estado tosiendo y estornudando mucho. ¿Que pasa conmigo?

Translation:

Hello my name is Maria! For the past three days, I have been having these symptoms. I think I might have a cold or flu. Sometimes it is very painful at night. I can't eat anything either because I have the urge to vomit. I can't go outside into the light because it can be very blinding. Lastly, I have been coughing and sneezing a lot. What's wrong with me?