The hundredths place is the the second number to the right of the decimal so as a decimal you would write it like this:
[tex]0.45[/tex]
To write it simply as a fraction, it looks like this:
[tex] \frac{45}{100} [/tex]
But if you want to simplify it you need to find a least common multiple of both the denominator and numerator. In this case I would choose 5. Divide both the numerator and the denominator by that number.
[tex] \frac{9}{20} [/tex]
