Actually, there's nothing improper about them... It's just when the numerator is bigger then the denominator.

Like 7/6

So, let's see what this means. Let's looks at a hexagon... That's 7 pieces...

       

Hey, this is just 1 1/6!

So, 7/6 must be the same as 1 1/6...

7/6 = 1 1/6

Hmm... Let's see how this works!

Look at the hexagons again:

       

6/6 and 1/6

Hey, 6/6 is a magic 1!

So, 7/6 = 6/6 and 1/6 = 1 1/6