Find whether 3/13 is rational or irrational without performing long division

Answer: The number 313\frac{3}{13} is a rational number.

Step-by-step solution

Step 1: Understand Rational Numbers

A rational number is defined as any number that can be written as a fraction pq\frac{p}{q}, where pp and qq are integers, and qq is not equal to zero. This definition is fundamental to classifying numbers as rational or irrational.

Step 2: Analyze the Given Number

We are given the number 313\frac{3}{13}. We need to determine if it fits the definition of a rational number.

Step 3: Check Conditions for Rationality

In the fraction 313\frac{3}{13}, the numerator pp is 33, which is an integer. The denominator qq is 1313, which is also an integer. Furthermore, the denominator 1313 is not equal to zero. All conditions for a rational number are met.

Step 4: Conclusion

Since 313\frac{3}{13} can be expressed in the form pq\frac{p}{q} where p=3p=3 and q=13q=13 are integers and q≠0q \neq 0, it is a rational number.

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