Rút gọn phân thức: `a, (3x(1-x))/(2(x-1))` `b, (6x^2y^2)/(8xy^5)` `c, (3(x-y)(x-z)^2)/(6(x-y)(x-z))`

Mình cho bạn đáp án nha, do mik đang bận:

`a.\frac{3x(1-x)}{2(x-1)}=\frac{-3x(x-1)}{2(x-1)}=-\frac{3x}{2}`

`b.\frac{6x^2y^2}{8xy^5}=\frac{6x^2y^2:2xy^2}{8xy^5:2xy^2} =\frac{3x}{4y^3}`

`c.(3(x-y)(x-z)^2)/(6(x-y)(x-z))=\frac{x-z}{2}`