Question

Желательно срочно, пожалуйста! ​

Answer 1

Ответ:

5)

$\frac{ma - mb}{ {3m}^{2} } \times \frac{2m}{nb - na} \\ \frac{am - bm}{ {3m}^{2} } \times \frac{2m}{bn - an} \\ \frac{ - m \times ( - a + b)}{ {3n}^{2} } \times \frac{2m}{n \times (b - a)} \\ \frac{ - m}{ {3n}^{2} } \times \frac{2m}{n} \\ - \frac{ {2m}^{2} }{ {3n}^{3} }$

6)

$\frac{3a}{ {b}^{2} } \times \frac{ab + {b}^{2} }{9} \times \frac{6}{a} \\ \frac{1}{ {b}^{2} } \times \frac{b \times (a + b)}{3} \times 6 \\ \frac{1}{b } \times (a + b) \times 2 \\ \frac{2}{b} \times (a + b) \\ \frac{2a + 2b}{b}$