Answer:
Hey great question. But I would like to point out not all fractions get smaller.. only those between 0 and 1.
For example (1/4)^2 = 1/16 ....but.... (3/2)^2 = 9/4 ... And 3/2 = 1.5 but 9/4 = 2.25....so....this gets larger
[This also assumes that the exponents are positive integers ]
Also if you try doing 1/2to the third
1/2x1/2x1/2
which is 1/8.
I think it just have numbers work.