caranya gimana yaa?? pliss jawab yaa

[tex] \frac{ \frac{a}{b} }{1 - \frac{a}{b} } \\ = \frac{ \frac{a}{b} }{ \frac{b - a}{b} } \\ = \frac{a}{b} \div \frac{b - a}{b} \\ = \frac{a}{b} \times \frac{b}{b - a} \\ = \frac{a}{1} \times \frac{1}{b - a} \\ = \frac{a}{b - a} [/tex]
Maaf Kalau Salah