There were 6 girls and 18 boys in mrs. johnson’s math
class. write a ratio of the # of girls to the # of boys in
fraction form. then write the fraction as a repeating
decimal.

6/18 
=1/3 
=0+1/3 
=0=0.3 
Remember: Put a notation bar (or line) above the top of the number 3. This means it repeats continuously as a decimal.
=
Hope this helps!

Note that even though it's uneven, just think of it as a line on top of 3 in (0.3). :)