RS Aggarwal Solutions Class 7 Maths Chapter 4 Ex 4.2 (Updated For 2021-22)

RS Aggarwal Solutions Class 7 Maths Chapter 4 Ex 4.2: Class 7 Maths is made easier and all thanks to RS Aggarwal Solutions Class 7 Maths. Begin your Class 7 Maths exam prep and assignments with RS Aggarwal Solutions Class 7 Maths Chapter 4 Ex 4.2. All its solutions are accurate, credible and as per the current CBSE Syllabus.

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RS Aggarwal Solutions Class 7 Maths Chapter 4 Ex 4.2

RS Aggarwal Solutions Class 7 Maths Chapter 4 Ex 4.2 – Overview

• Steps To Represent Rational Numbers On The Number Line

1. Draw a straight line that will be containing all the numbers which are marked at equal intervals. As a mid number, it will have a zero going along the negative and positive direction.
2. Check whether the provided rational numbers lie under the category of a negative rational number or a positive rational number.
3. Check whether the rational number is in a proper fraction form or an improper fraction form or if it’s just a whole number.
4. If the number has the form of a whole number, it will become easier to Mark it on the number line directly.
5. If the given number is not a positive or a negative integer, then check whether its a proper fraction or not i.e., if it is in the form of P/Q or not where P < Q, accordingly it will be lying somewhere between 0 and 1.
6. To locate this number, divide the 0 and 1 in-between parts into equal parts, which must be equivalent to the denominator value in the fraction. Then, the mark will be made according to the number given in the numerator.
7. This Demonstration of Rational Numbers is done in the same way as we represent the Integers or the Whole Numbers on the number line.
8. We generally call the number ‘0’ as the Origin in the Number Line. All the Positives +ve’s locates their values on the right origin, and all the negatives -ve are located their values on the left origin.

• Comparison Of Rational Numbers

Here are some facts about the comparison of the rational numbers.

1. Each +ve, a positive rational number is greater than ‘0’.
2. Each -ve, a negative rational number is lesser than ‘0’.

3. Each +ve positive rational number is considered greater than each -ve, negative rational number.

    
4. All the Rational Numbers illustrated by a point on the right side of the number line will always be greater than all the rational numbers illustrated by points on its left side.
5. All the Rational Numbers illustrated by a point on the left side of the number line will always be smaller than all the rational numbers illustrated by points on its right side.

• Steps To Compare The Rational Numbers

1. Get the given rational numbers.
2. Write the given rational numbers in a way that the denominator value of the rational numbers becomes positive.
3. Take the LCM of the positive denominator value obtained of the given rational numbers that we did in the above step.
4. Show every rational number with the LCM in the form of a common denominator.
5. Compare the numerators of rational numbers, the one having the greater numerator will be considered as the greater rational number.

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