2n-5m/m – 6n^2+5m^2/mn Срочно помогите!!!

[latex] \frac{2n-5m}{m} - \frac{6n^{2}+5m^{2}}{mn}= \frac{n(2n-5m)-6n^{2}-5m^{2} }{mn}= \frac{2n^{2}-5mn-6n^{2}-5m^{2}}{mn}=[/latex][latex] \frac{-4n^{2}-5mn-5m^{2}}{mn} [/latex]