You can put this solution on YOUR website!
There's an obvious typo in this problem, though I'm not sure whether to assume that there are 25 kids where 6 are girls and 19 are boys or whether there are 19 kids with 6 girls and 13 boys. I'll cover both cases.
Let's say you meant 25 kids where 6 are girls and 19 are boys.
Then 6/25 are girls and 19/25 are boys.
Maybe you meant 19 kids where 6 are girls and 13 are boys.
Then 6/19 are girls and 13/19 are boys.
Whichever the case is, I hope that helps!