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