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NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Ex 1.2

NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Ex 1.1 are part of NCERT Solutions for Class 8 Maths. Here we have given NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Ex 1.1.

Board CBSE
Textbook NCERT
Class Class 8
Subject Maths
Chapter Chapter 1
Chapter Name Rational Numbers
Exercise Ex 1.2
Number of Questions Solved 7
Category NCERT Solutions

NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Ex 1.2

Ex 1.2 Class 8 Maths Question 1.
Represent these numbers on the number line.
(i) \frac { 7 }{ 4 }
(ii) \frac { -5 }{ 6 }
Solution:
(i) For \frac { 7 }{ 4 } , we make 7 markings of distance each on the right of zero and starting from 0. The seven marking is \frac { 7 }{ 4 } .
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 13
The point P represents the rational number —.
(ii) For \frac { -5 }{ 6 } , we make 5 markings of distance \frac { 1 }{ 6 } each on the left of zero and starting from 0. The fifth marking \frac { -5 }{ 6 } The point P represents the 6 rational number \frac { -5 }{ 6 } .
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 14

Ex 1.2 Class 8 Maths Question 2.
Represent \frac { -2 }{ 11 } ,\frac { -5 }{ 11 } ,\frac { -9 }{ 11 } on the number line.
Solution:
To represent \frac { -2 }{ 11 } ,\frac { -5 }{ 11 } ,\frac { -9 }{ 11 } on a number line, draw a number line and mark a point O on it to represent zero. Now, mark a point P representing integers -1 on the left side of O on the number line.
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 15
Divide the segment OP into eleven equal parts. Let A, B, C, D, E, F, G, H, I, J be the points of division so that OA=AB =BC = … = JP. By construction, OB is two-eleventh of OP so B represents \frac { -2 }{ 11 } OE is five-eleventh of OP so E represents \frac { -5 }{ 11 } and OI is nine-eleventh of OP so I represents \frac { -9 }{ 11 } .

Ex 1.2 Class 8 Maths Question 3.
Write five rational numbers, which are smaller than 2.
Solution:
Five rational numbers less than 2 may be taken
1,\frac { 1 }{ 2 } ,0,-1,\frac { -1 }{ 2 }
(There can be many more such rational numbers.)

Ex 1.2 Class 8 Maths Question 4.
Find ten rational numbers between \frac { -2 }{ 5 } and \frac { 1 }{ 2 } .
Solution:
Converting the given rational numbers with the same denominators
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 16

Ex 1.2 Class 8 Maths Question 5.
Find five rational numbers between
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 17
Solution:
(i) Converting the given rational numbers with the same denominators
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 18

(ii) Converting the given rational numbers with the same denominators
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 19
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 20

(iii) Converting the given rational numbers with the same denominators
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 21

Ex 1.2 Class 8 Maths Question 6.
Write five rational numbers greater than – 2.
Solution:
Five rational numbers greater than -2 may be taken as
-\frac { 3 }{ 2 } ,-1,\frac { -1 }{ 2 } ,0,\frac { 1 }{ 2 }
There can be many more such rational numbers.

Ex 1.2 Class 8 Maths Question 7.
Find ten rational numbers between \frac { 3 }{ 5 } and \frac { 3 }{ 4 } .
Solution:
Converting the given rational numbers with the same denominators
NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers 22