Here's a longer one:

.26 <- The last spot is the hundredths (1/100)

So, put the 26 over 100:

.26 = 26/100 = (26/100) / (2/2) = 13/50

One more:

.325 <-- last spot is 1/1000

.325 = 325/1000 = (325/1000) / (25/25) = 13/40

Hey, if you have a calculator handy, you can use it to double-check these answers!

For the last one, do

13 / 40 =

Yep, you get .325 back!