$\text{Đáp án:}$
$\text{Bạn tham khảo nha}$
`6/7` = `36/42`
`7/6` = `49/42`
`49/42` > `36/42`
$\text{Vậy}$ `7/6` > `6/7`
`9/10` = $\dfrac{63}{70}$
`2/14` = $\dfrac{10}{70}$
$\dfrac{63}{70}$ > $\dfrac{10}{70}$
$\text{Vậy}$ `9/10` > `2/14`
$\text{chúc bạn học tốt nha}$ ^^