Decimal Numbers as Rationals Numbers

Express the following decimal number in the form of $\frac{p}{q}$

$0.004$

Express the following decimal number in the form of $\frac{p}{q}$

$0.148$

Express the following decimal number in the form of $\frac{p}{q}$

$0.9$

Express the following in the form of $\frac{p}{q}$

$0.45$

Express the following decimal number in the form of $\frac{p}{q}$

$0.84$

Express the following decimal number in the form of $\frac{p}{q}$

$0.018$