Express each fraction as a decimal.

$$\frac{5}{10} = 0.5$$

Your work shows 0.5, which is correct.
The decimal is $\boxed{\text{0.5}}$.

b) $\frac{1}{100}$

$$\frac{1}{100} = 0.01$$

The decimal is $\boxed{\text{0.01}}$.

c) $\frac{999}{10}$

$$\frac{999}{10} = 99.9$$

The decimal is $\boxed{\text{99.9}}$.

2. Write the following fractions as decimals.

a) $\frac{3}{4}$

$$\frac{3}{4} = 0.75$$

The decimal is $\boxed{\text{0.75}}$.

b)