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
- 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.
- Check whether the provided rational numbers lie under the category of a negative rational number or a positive rational number.
- Check whether the rational number is in a proper fraction form or an improper fraction form or if it’s just a whole number.
- If the number has the form of a whole number, it will become easier to Mark it on the number line directly.
- 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.
- 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.
- This Demonstration of Rational Numbers is done in the same way as we represent the Integers or the Whole Numbers on the number line.
- 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.
- Each +ve, a positive rational number is greater than ‘0’.
- Each -ve, a negative rational number is lesser than ‘0’.
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Each +ve positive rational number is considered greater than each -ve, negative rational number.
- 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.
- 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
- Get the given rational numbers.
- Write the given rational numbers in a way that the denominator value of the rational numbers becomes positive.
- Take the LCM of the positive denominator value obtained of the given rational numbers that we did in the above step.
- Show every rational number with the LCM in the form of a common denominator.
- Compare the numerators of rational numbers, the one having the greater numerator will be considered as the greater rational number.
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