`0.15div 0.5/15=?`

Options

A. 4.5
B. 45
C. 0.03
D. 0.45

Answer

To solve the expression \(0.15 \div 0.5 \div 15\), we can follow these steps:

### Step 1: Rewrite the Expression
We start with the expression:
\[ 0.15 \div 0.5 \div 15 \]
This can be rewritten as:
\[ \frac{0.15}{0.5} \div 15 \]

### Step 2: Calculate \(0.15 \div 0.5\)
To divide \(0.15\) by \(0.5\), we can multiply \(0.15\) by the reciprocal of \(0.5\) (which is \(2\)):
\[ 0.15 \div 0.5 = 0.15 \times 2 = 0.30 \]

### Step 3: Divide the Result by 15
Now we take the result from the previous step and divide it by \(15\):
\[ 0.30 \div 15 \]
To perform this division, we can convert \(0.30\) to a fraction:
\[ 0.30 = \frac{30}{100} = \frac{3}{10} \]
Now, we divide:
\[ \frac{3}{10} \div 15 = \frac{3}{10} \times \frac{1}{15} = \frac{3}{150} = \frac{1}{50} \]

### Step 4: Convert the Fraction to Decimal
Now, we convert \(\frac{1}{50}\) to a decimal:
\[ \frac{1}{50} = 0.02 \]

### Final Answer
Thus, the final answer is:
\[ 0.15 \div 0.5 \div 15 = 0.02 \]

---