The decimal number 2.25 can be converted into a fraction as follows:

\[ 2.25 = \frac{9}{4} \]

Here's how it's done:

1. **Write the decimal as a fraction**:  
   \[ 2.25 = \frac{225}{100} \]

2. **Simplify the fraction**:  
   Find the greatest common divisor (GCD) of 225 and 100, which is 25, and divide both the numerator and the denominator by it.
   \[ \frac{225 \div 25}{100 \div 25} = \frac{9}{4} \]

So, 2.25 is equivalent to \(\frac{9}{4}\) as a fraction.

Would you like more details or have any questions? 

Here are some related questions:

1. How do you convert a repeating decimal to a fraction?
2. What is the fraction equivalent of 2.5?
3. How can you convert 1.75 into a fraction?
4. What is the decimal form of \(\frac{7}{4}\)?
5. How do you simplify a fraction?

**Tip:** When converting decimals to fractions, remember that moving the decimal point corresponds to multiplying by powers of 10.

Learn how to convert the decimal number 2.25 into a fraction (2.25 = 9/4) with a detailed step-by-step guide. This problem covers converting decimals to fractions and simplifying fractions using the greatest common divisor (GCD). Suitable for students in Grades 5-7.

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