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Rational Numbers on a Number Line - 1 Video Lecture | Advance Learner Course: Mathematics (Maths) Class 7

FAQs on Rational Numbers on a Number Line - 1 Video Lecture - Advance Learner Course: Mathematics (Maths) Class 7

1. What are rational numbers?
Ans. Rational numbers are numbers that can be expressed as a fraction of two integers, where the denominator is not zero. These numbers can be positive, negative, or zero.
2. How can rational numbers be represented on a number line?
Ans. Rational numbers can be represented on a number line by assigning a specific point to each number. The number line is divided into equal intervals, and each rational number is placed at its corresponding point.
3. Are all whole numbers considered as rational numbers?
Ans. Yes, all whole numbers are considered rational numbers because they can be expressed as a fraction with a denominator of 1. For example, the whole number 5 can be written as 5/1.
4. Can irrational numbers be represented on a number line?
Ans. Yes, irrational numbers can also be represented on a number line. However, unlike rational numbers, irrational numbers cannot be expressed as a fraction. They are usually represented using decimal approximations.
5. How can we identify if a given number is rational or irrational?
Ans. To identify whether a number is rational or irrational, we can check if it can be expressed as a fraction. If it can, then it is rational. If it cannot be expressed as a fraction and has an infinite non-repeating decimal representation, then it is irrational.

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