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What are Positive and Negative Rational Numbers? Video Lecture | Mathematics (Maths) Class 7

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FAQs on What are Positive and Negative Rational Numbers? Video Lecture - Mathematics (Maths) Class 7

1. What are positive rational numbers?
Ans. Positive rational numbers are numbers that can be expressed as a ratio of two integers, where the numerator and denominator are both positive. These numbers can be written in the form of a/b, where a and b are positive integers.
2. What are negative rational numbers?
Ans. Negative rational numbers are numbers that can be expressed as a ratio of two integers, where the numerator is negative and the denominator is positive. These numbers can be written in the form of -a/b, where a is a positive integer and b is a positive integer.
3. How can positive rational numbers be represented on a number line?
Ans. Positive rational numbers can be represented on a number line by marking the position of the numerator on the number line and then dividing the distance between the marks into equal parts according to the denominator. The positive rational number will lie between these marks.
4. Can negative rational numbers be represented on a number line?
Ans. Yes, negative rational numbers can be represented on a number line. To represent a negative rational number on a number line, mark the position of the absolute value of the numerator and then divide the distance between the marks into equal parts according to the denominator. The negative rational number will lie to the left of these marks.
5. What is the difference between positive and negative rational numbers?
Ans. The main difference between positive and negative rational numbers is the sign. Positive rational numbers have a positive sign and can be written as a/b, where a and b are positive integers. Negative rational numbers have a negative sign and can be written as -a/b, where a is a positive integer and b is a positive integer.

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