Half of 1 per cent written as a decimal is

Options

A. `0.2`
B. `0.02`
C. `0.05`
D. `0.005`

Answer

To find half of 1 percent written as a decimal, we can follow these steps:

### Step 1: Understand what 1 percent means
1 percent means 1 out of 100, which can be expressed as a fraction:
\[ 1\% = \frac{1}{100} \]

### Step 2: Calculate half of 1 percent
To find half of 1 percent, we need to divide 1 percent by 2:
\[ \text{Half of } 1\% = \frac{1\%}{2} = \frac{1}{100} \div 2 \]

### Step 3: Simplify the division
Dividing by 2 is the same as multiplying by \( \frac{1}{2} \):
\[ \frac{1}{100} \div 2 = \frac{1}{100} \times \frac{1}{2} = \frac{1 \times 1}{100 \times 2} = \frac{1}{200} \]

### Step 4: Convert the fraction to a decimal
Now, we convert \( \frac{1}{200} \) to a decimal. To do this, we can divide 1 by 200:
\[ \frac{1}{200} = 0.005 \]

### Final Answer
Thus, half of 1 percent written as a decimal is:
\[ \boxed{0.005} \]

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