Bài 1: $\frac{13}{14}$ < $\frac{15}{14}$
$\frac{68}{100}$ < $\frac{86}{100}$
$\frac{25}{32}$ = $\frac{50}{64}$
$\frac{90}{90}$ = $1$
$1$ > $\frac{9}{10}$
$\frac{73}{37}$ > $1$
Bài 2: $\frac{24}{36}=$$\frac{2}{3}$ (rút gọn cho 12)
$\frac{25}{100}=$$\frac{1}{4}$ (rút gọn cho 25)
$\frac{143}{132}=$$\frac{13}{12}$ (rút gọn cho 11)
$\frac{3535}{3737}=$$\frac{35}{37}$ (rút gọn cho 101)