Đáp án + giải thích các bước giải:

$\text{a)}$

`37/100`$\text{ = 37%}$

`27/100` $\text{= 27%}$

`42/600` $\text{=}$ `7/100` $\text{= 7%}$

`63/700` $\text{=}$ `9/100` $\text{= 9%}$

$\text{b)}$

`3/4` $\text{=}$ `75/100` $\text{= 75%}$

`12/10` $\text{=}$ `120/100` $\text{= 120%}$

`48/50` $\text{=}$ `96/100` $\text{= 96%}$

`12/20` $\text{=}$ `60/100` $\text{= 60%}$

$\text{#TokitouMuichiroucute}$

$\text{a,}$ 
$\frac{37}{100}$  `=  37%`

$\frac{27}{100}$  `=  27%`

$\frac{42}{100}$  `=  42%`

$\frac{63}{100}$  `=  63%`

$\text{b,}$

$\frac{3}{4}$  `=`  $\frac{75}{100}$  `=  75%`

$\frac{12}{10}$  `=`  $\frac{120}{100}$  `= 120%`

$\frac{48}{50}$  `=`  $\frac{480}{100}$  `=  480%`

$\frac{12}{20}$  `=`  $\frac{60}{100}$  `=  60%`

$\textit{#aKi}$