a, $\frac{125}{1000}$ = $\frac{1}{8}$

$\frac{198}{126}$ = $\frac{11}{7}$

$\frac{3}{243}$ = $\frac{1}{81}$

$\frac{103}{3090}$ = $\frac{1}{30}$

b, $\frac{15.32}{24.45}$ = $\frac{4}{9}$

$\frac{9.28}{14.36}$ = $\frac{1}{2}$

$\frac{12.7-12.5}{24}$ = 1

$\frac{19.8-19}{15+4}$ = 7

$\frac{51+8.51}{55-4}$ = 9

$\frac{23.7+23.5}{46}$ = 6

Xin hay nhất ạ

nguyenquanghuy24#

Đáp án:

$\text{a)}$

$\dfrac{125}{1000}$ = $\dfrac{1}{8}$

$\dfrac{198}{126}$ = $\dfrac{11}{7}$

$\dfrac{3}{243}$ = $\dfrac{1}{81}$

$\dfrac{103}{3090}$ = $\dfrac{1}{30}$

$\text{b)}$

$\dfrac{15 . 32}{24 . 45}$ = $\dfrac{4}{9}$

$\dfrac{9 . 28}{14 . 36}$ = $\dfrac{1}{2}$

$\dfrac{3 . 7 . 25}{75 . 42}$ = $\dfrac{1}{6}$

$\dfrac{12 . 7 – 12 . 5}{24}$ = 1

$\dfrac{19 . 8 - 19}{15 + 4}$ = 7

$\dfrac{51 + 8 . 51}{55 - 4}$ = 9

$\dfrac{23 . 7 + 23 . 5}{46}$ = 6

$\text{Chúc bạn học tốt ạ~}$