a) \(\displaystyle{\rm{}}{{ - 12} \over {17}} < {{...} \over {17}} < {{...} \over {17}} < {{...} \over {17}} < {{ - 8} \over {17}}\)
Ta có \(-12
\(\Rightarrow \displaystyle{{ - 12} \over {17}} < {{ - 11} \over {17}} < {{ - 10} \over {17}} < {{ - 9} \over {17}} < {{ - 8} \over {17}}\)
b) \(\displaystyle{{ - 1} \over 2} < {{...} \over {24}} < {{...} \over {12}} < {{...} \over 8} < {{ - 1} \over 3}\)
\( \Rightarrow \displaystyle{{ - 12} \over {24}} < {{...} \over {24}} < {{...} \over {24}} < {{...} \over {24}} < {{ - 8} \over {24}}.\)
Mà \(-12
\(\Rightarrow \displaystyle{{ - 12} \over {24}} < {{ - 11} \over {24}} < {{ - 10} \over {24}} < {{ - 9} \over {24}} \)\(\displaystyle< {{ - 8} \over {24}}\)
Vậy : \(\displaystyle{{ - 1} \over 2} < {{ - 11} \over {24}} < {{ - 5} \over {12}} < {{ - 3} \over 8} < {{ - 1} \over 3}.\)