The number 121 is a **rational** number. 

Here's why:
- A rational number is any number that can be expressed as the fraction \( \frac{a}{b} \), where \( a \) and \( b \) are integers, and \( b \neq 0 \).
- 121 is an integer, which can be expressed as \( \frac{121}{1} \), satisfying the condition for being a rational number.

Additionally, 121 is a perfect square, since \( 121 = 11^2 \), further indicating it's rational.

Would you like further details or have any questions?

Here are 5 related questions to consider:
1. What is the difference between rational and irrational numbers?
2. Can an irrational number ever become rational?
3. Is the square root of 121 rational or irrational?
4. How can we determine if a decimal is rational or irrational?
5. Why are all integers considered rational numbers?

**Tip:** Remember, all whole numbers and fractions are rational numbers because they can be expressed as fractions!

Explore whether 121 is a rational or irrational number. Understand key mathematical concepts such as rational numbers, the fraction representation of integers, and the properties of perfect squares. This problem is suitable for students in Grades 6-8.

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