Find the HCF of 0.9 , 0.36 and 1.80 .

Explanation

To find the HCF (Highest Common Factor) of the numbers 0.9, 0.36, and 1.80, we will follow these steps:

### Step 1: Convert the decimal numbers to fractions
- **0.9** can be expressed as \( \frac{9}{10} \)
- **0.36** can be expressed as \( \frac{36}{100} \)
- **1.80** can be expressed as \( \frac{180}{100} \)

### Step 2: Make the denominators the same
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