x^-2y+6z^-1
add. write the answer with all exponents positive
x^-2y = y/x^2
6z^-1 = 6/z
If you want a single fraction, then that would be
(yz+6x^2)/(x^2z)
add. write the answer with all exponents positive
6z^-1 = 6/z
If you want a single fraction, then that would be
(yz+6x^2)/(x^2z)