4. Fractions

Insert , $>$, or $=$ to form a true statement.

$-\frac{4}{9}?-\frac{2}{7}$

Insert , $>$, or $=$ to form a true statement.

$-\frac{5}{12}?-\frac{30}{72}$

Insert , $>$, or $=$ to form a true statement.

$\frac{5}{18}?\frac{7}{10}$