Write $\frac{3}{12}$ in decimal form.

Q. Write the following rational numbers in decimal form:

(2) $\frac{1}{2}$

Q. Convert $\frac{8}{12}$, $\frac{3}{4}$ and $\frac{4}{5}$ to decimal form, and write them in descending order.

Q. Write in decimal form:
$300+50+2+\frac{3}{2}=?$