Question 237960
when you have a fractional exponent; think of the numerator (top) as a power, and the denominator (bottom) as a root


the 2/3 in the problem means "cuberoot, squared"


the cuberoot of 125 is 5; 5 squared is 25


the cuberoot of 216 is 6; 6 squared is 36


(125/216)^2/3 = 25/36