(-5/2)⁻²
(-2/5)⁻²
(-5/2)⁻³
(-3/4)⁻¹
(-9/4)⁻³
(-2/5)⁻³
(4/3)⁻³
(-4/3)⁻¹
(4/9)⁻³
(3/4)⁻³
64/27
-8/125
-125/8
27/64
25/4
729/64
-3/4
-4/3
-64/729
4/25