Điền số thích hợp vào chỗ chấm  $\dfrac{{15}}{{90}} = \dfrac{5}{{...}}$

\(\dfrac{{12}}{0}\)     

\(\dfrac{{ - 4}}{5}\)  

\(\dfrac{3}{{0,25}}\)  

\(\dfrac{{4,4}}{{11,5}}\)

\(\dfrac{1}{2}\)          

\(\dfrac{1}{4}\)                      

\(\dfrac{3}{4}\)          

\(\dfrac{5}{8}\)

\(\dfrac{1}{3} = \dfrac{{45}}{{135}}\)          

\(\dfrac{{ - 13}}{{20}} = \dfrac{{26}}{{ - 40}}\)  

\(\dfrac{{ - 4}}{{15}} = \dfrac{{ - 16}}{{ - 60}}\)             

\(\dfrac{6}{7} = \dfrac{{ - 42}}{{ - 49}}\)

\(4\)

\(1\)  

\(3\)

\(2\)

\(n \in \left\{ { - 6; - 1;0;5} \right\}\)  

\(n \in \left\{ { - 1;5} \right\}\)

\(n \in \left\{ {0;5} \right\}\)

\(n \in \left\{ {1;11} \right\}\)

\(1\)

\(0\)  

\(2\)

\(3\)