Question

compare as 2 frações usando os sinais <> ou =
3/10_ 3/9
33/100_77/100
5/12_12/5
9/17_9/19
22/45_35/60
PRECISO ATE AMANHA

Answer 1

$\dfrac{3}{10}~~ \ \textless \ ~~ \dfrac{3}{9}~,~pois,~~0,3\ \textless \ 0,333... \\\\\\\\ \dfrac{33}{100}~~ \ \textless \ ~~ \dfrac{77}{100} ~,~pois,~~0,33\ \textless \ 0,77$




$\dfrac{5}{12}~~ \ \textless \ ~~ \dfrac{12}{5}~,~pois,~~0,41666...\ \textless \ 2,4... \\\\\\\\ \dfrac{9}{17}~~ \ \textgreater \ ~~ \dfrac{9}{19} ~,~pois,~~ \~=~0,53\ \textgreater \ \~=0,45$




$\dfrac{22}{45}~~ \ \textless \ ~~ \dfrac{35}{60}~,~pois,~~0,4888...\ \textless \ 0,58333...$