Respuesta :

[tex] \dfrac{15}{15} = 1 = 100 percent [/tex] 

[tex] \dfrac{15}{15} - \dfrac{3}{15} = \dfrac{12}{15} [/tex] 

[tex] \dfrac{12}{15} = 12/15 = 0.8 [/tex] 

[tex]0.8*100 = 80 percent [/tex]