Cách làm cho bạn:
a) Ta có: $\frac{-57}{2021}$ < 0
$\frac{1}{6345}$ > 0
=> $\frac{-57}{2021}$ < $\frac{1}{6345}$
b) ta có:
$\frac{-19}{35}$ = $\frac{-57}{105}$
$\frac{-13}{21}$ = $\frac{-65}{105}$
$\frac{-57}{105}$>$\frac{-65}{105}$
=>b)$\frac{19}{35}$ > $\frac{13}{21}$
c) $\frac{6}{73}$ và $\frac{9}{82}$
Ta có: $\frac{6}{73}$ = $\frac{18}{129}$
$\frac{9}{82}$= $\frac{18}{64}$
$\frac{18}{129}$ < $\frac{18}{64}$
=>$\frac{6}{73}$ < $\frac{9}{82}$
Bình luận