EXERCISE 4.1

 Fill in the blanks to make equivalent rational numbers in the following.

$\frac{-3}{5}=\frac{?}{15}$

 Fill in the blanks to make equivalent rational numbers in the following.

$\frac{4}{-8}=\frac{20}{?}$

 Fill in the blanks to make equivalent rational numbers in the following.

$\frac{13}{-15}=\frac{?}{-45}$

 Fill in the blanks to make equivalent rational numbers in the following.

$\frac{-9}{-16}=\frac{36}{?}$

 Fill in the blanks to make equivalent rational numbers in the following.

$\frac{15}{-19}=\frac{?}{95}$

 Fill in the blanks to make equivalent rational numbers in the following.

$\frac{-7}{-12}=\frac{?}{-144}$

Does the following pair represent the same rational number?

$\frac{-11}{5}, \frac{33}{-15}$

Does the following pair represent the same rational number?

$\frac{9}{-14}, \frac{-18}{-24}$