Radical Expressions/Fractional Exponents

A radical expression may be written as an expression with fractional exponents and vice-versa.
The radical expression  becomes a fractional exponent expression.  Notice the position of the numerator and denominator of the fraction … the exponent on the radicand becomes the numerator and the index becomes the denominator.  To reverse the situation, the fractional exponent expression  becomes a radical expression … once again, the index becomes the denominator.  The last example can then be further simplified:  .  It would be helpful to review the Rules of Exponents since these rules also apply to expressions with fractional exponents.

General Algebra Tips