Write $5$ fractional numbers that are in the standard form.

Convert the following fractions into their standard form.

$\frac{7}{28}$

Convert the following fractions into their standard form.

$\frac{15}{90}$

Convert the following fractions into their standard form.

$\frac{11}{33}$

Convert the following fractions into their standard form.

$\frac{39}{13}$

Identify the biggest and the smallest in these group of fractional numbers

$\frac{1}{7}, \frac{3}{7}, \frac{2}{7}, \frac{5}{7}$

Identify the biggest and the smallest in these group of fractional numbers

$\frac{1}{9}, \frac{13}{9}, \frac{11}{9}, \frac{5}{9}$