To convert 3.25 into a fraction, follow these steps:
1. **Write down the number as a fraction of one:**
\( 3.25 = \frac{3.25}{1} \)
2. **Multiply both the numerator and the denominator by 100 to eliminate the decimal point:**
\( \frac{3.25 \times 100}{1 \times 100} = \frac{325}{100} \)
3. **Simplify the fraction by finding the greatest common divisor (GCD) of 325 and 100:**
The GCD of 325 and 100 is 25.
4. **Divide both the numerator and the denominator by the GCD:**
\( \frac{325 \div 25}{100 \div 25} = \frac{13}{4} \)
So, 3.25 as a fraction is \( \frac{13}{4} \). This is an improper fraction, which can also be expressed as a mixed number: \( 3 \frac{1}{4} \).