Best Answer

ℚ (fancy capital Q) is the set of rational numbers.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What letter is used to notate the set of a rational number?
Write your answer...
Still have questions?
magnify glass
Related questions

What is the symbol for rational numbers?

Q is the set of all rational numbers. The letter Q is used because rationals can be expressed as a quotient of two integers. Any letter from the Greek or Latin alphabet may be used as a symbol for an individual rational number.

Which way of writing the number can be used to show that it is a rational number?

If it can be expressed as a fraction then it is a rational number

Why we denote set of rational number by q?

Q stands for quotient. The letter R was already used for the set of Real numbers.

Why are rational numbers denoted as Q?

The letter R was used for real numbers. So Q, for quotients was used for rational numbers.

Is 3.14 an irrational number a rational number or an integer?

3.14 is rational. However, it is often used as an approximation for pi, which is irrational.

What are rational numbers and how are they used?

A rational number is a number that can be written in the form a/b, where "a" and "b" are integers and b is not equal to zero. For example, whole numbers are rational numbers.

Is 8 ot of 23 rational?

The number 8 out of 23 is a rational. This is used in math.

What is a sentence for rational number?

a rational number is used to count ice cream = example they count how many icecreams the gout so if they have 7 it would be 7 /3 because 3 is the rational number

How can rational number be used to help locate irrational?

The idea is to look for a rational number that is close to the desired irrational number. You can find rational numbers that are as close as you want - for example, by calculating more decimal digits.

Is 3.14159 a rational or irrational number?

3.14159 is rational. However, it is often used as an approximation for π, which is irrational. It is important to recognise that the rational number, 3.14159, is only an approximation for π.

Can the denominator of a rational number be used as any integer?

No. 3/(1/7) is a rational number. However, (1/7) cannot be used as an integer. Incidentally, the number equals 21.

What does nonproportional mean?

a number that is not rational real and can be used in an equatuion