What do fractional exponents mean? Fractional exponents are also called rational exponents. They are another form of rational notation.
The numerator expresses the power and the denominator represents the root index.
The radicand is the number and the root index tells you how many times a number is multiplied by itself in order to equal the radicand.
![](https://i.ytimg.com/vi/sNGcZMhkG7w/maxresdefault.jpg)