Răspuns:
[tex](\frac{1}{ab} -\frac{1}{abab}):(\frac{1}{ba} -\frac{1}{baba})=(\frac{1}{ab} -\frac{1}{ab*101}):(\frac{1}{ba} -\frac{1}{ba*101})=\\=\frac{1}{ab}(1 -\frac{1}{101}):\frac{1}{ba}(1 -\frac{1}{*101})=\frac{1}{ab}:\frac{1}{ba}=\frac{1}{ab}*ba=\frac{ba}{ab}[/tex]
Explicație pas cu pas:
