The number \(-1.75\) is a rational number.

A rational number is any number that can be expressed as the quotient or fraction \(\frac{a}{b}\), where \(a\) and \(b\) are integers and \(b \neq 0\). 

\(-1.75\) can be written as the fraction \(\frac{-7}{4}\), where \(-7\) and \(4\) are integers. Therefore, \(-1.75\) is rational.

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Here are some related questions:

1. What are rational numbers?
2. What are irrational numbers?
3. How can we convert a decimal to a fraction?
4. Can \(\sqrt{2}\) be expressed as a fraction?
5. What are some examples of irrational numbers?
6. How do you identify if a number is rational or irrational?
7. Are repeating decimals rational?
8. What is the difference between rational and irrational numbers?

**Tip:** To determine if a decimal is rational, check if it terminates or repeats. If it does, it can be expressed as a fraction, hence it's rational.

Explore whether -1.75 is a rational or irrational number with a clear explanation using decimal to fraction conversion. Understand the definition of rational numbers and how to identify them. Suitable for Grades 5-7.

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