Express each of the following as a percentage :
`0.3`

Answer

To express `0.3` as a percentage, we can follow these steps:

### Step-by-Step Solution:

1. **Convert the decimal to a fraction**:
- We can express `0.3` as a fraction.
- \( 0.3 = \frac{3}{10} \)

2. **Multiply the fraction by 100**:
- To convert a fraction to a percentage, we multiply it by 100.
- \( \frac{3}{10} \times 100 \)

3. **Perform the multiplication**:
- When we multiply, we can simplify:
- \( \frac{3 \times 100}{10} = \frac{300}{10} \)

4. **Simplify the fraction**:
- Now, we simplify \( \frac{300}{10} \):
- \( 300 \div 10 = 30 \)

5. **Write the final answer**:
- Therefore, \( 0.3 \) can be expressed as \( 30\% \).

### Final Answer:
\( 0.3 = 30\% \)

---