Write the following rational number in the standard form:

$\frac{-15}{-35}$

Write the following rational number in the standard form:

$\frac{299}{-161}$

Write the following rational number in the standard form:

$\frac{-63}{-210}$

Write the following rational number in the standard form:

$\frac{68}{-119}$

Write each of the following rational numbers in the standard form:

$\frac{-195}{275}$

Compare the following rational numbers: $\frac{-9}{12}$ and $\frac{8}{-12}$

Find out whether following rational numbers are equal or not.

$\frac{-16}{20}$ and $\frac{20}{-25}$

Which of the following rational numbers are equal?

$\frac{-7}{21}$ and $\frac{3}{-9}$

Which of the following rational numbers are equal?

$\frac{-8}{-14}$ and $\frac{13}{21}$