Write each rational expression in simplest form. State all restrictions on the variables.
15x^2y^4z / 3xy^5
The rational expression 15x^2y^4z / 3xy^5 can be simplified by canceling out common factors in the numerator and denominator.
In this case, we can divide by 3, x, and y^4.
The simplified form of the expression is 5yz / y.
Restrictions on the variables: x cannot be equal to zero and y cannot be equal to zero.