i get confused on how to simplify fractions could someone help me out please?

You must determine if there is a number which will divide both the numerator and the denominator evenly.

For example:

$$\frac{15}{225}$$

both 15 and 225 can be divided by 15.

15 divided by 15= 1

225 divided by 15= 15

So you can simplify the original fraction to:

$$\frac{1}{15}$$

thanks