Write each rational expression in simplest form. State all restrictions on the variables.
15x^2y^4z/3xy^5
The rational expression in simplest form is 5z/y
The restrictions on the variables are:
- The variable x cannot be equal to 0, since it appears in the numerator as x^2.
- The variable y cannot be equal to 0, since it appears in the denominator as y^5.
- The variable z can be any real number, since it does not appear in the denominator.