Si una persona tiene que convivir 80 años y proyecta a terminar sus estudios cuanto tengo 1/3 de los años que vivirá. ¿A que edad termina sus estudios?

How do i do this activity, is appreciated

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

Complete each sentence with the correct form of the verb ser or estar to say where the following people are from or where they are right now claudia y maria en méxico