To convert a percentage into a fraction, we must first convert the percentage into a decimal. We can do that by either dividing the percentage by 100, or (my personal shortcut) just shifting the decimal point over two places to the left.
38% = 0.38
Now, all we need to do to convert it into a fraction is put the numbers to the right of the decimal point above a multiple of ten with as many zeros as there are numbers to the right of the decimal point. In this case:
0.38 =

Now, all we need to do is reduce to find our fraction.
38 and 100 are both divisible by 2, so we will start off by doing that.

And that is our answer.
38% in fraction form is

.
Hope that helped! =)