What is 3.25 with the 5 repeating as a rational number

So,



Multiply it by 100.

.

We now know that  is 100 times of .  If we subtract the first from the second, we will get 99 of the number.  Then, we can simply divide by 99 and we will have it in fraction form.



Now, we put it over 99.



Of course, we cannot have decimals in fraction form, so we will just fix that.