Respuesta :

Exvited
311/500 as a decimal = 0.622

77/200 as a decimal = 0.385

You can solve this by doing long division. 
TSO
[tex]\frac{311}{500} =\frac{622}{1000} = \boxed{\bf{0.622}}\\\\\frac{77}{200} = \frac{385}{1000} = \boxed{\bf{0.385}}[/tex]