Answer:
0.3333
Explanation:
There were 6 girls and 18 boys in Mrs. Johnson’s math class.
Number of girls = 6
number of boys = 18
To write the ratio of number of girls to the number of boys we make a fraction

Replace the number in the fraction and simplify

Divide both top and bottom of the fraction by 6

Repeating decimal of
is 0.3333