RS Aggarwal solution class 8 chapter 1 Rational Numbers Exercise 1B

Exercise 1B

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Q1 | Ex-1B | Class 8 | RS AGGARWAL | chapter 1 | Rational Numbers | myhelper

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Question 1:

Represent each of the following numbers on the number line:
(i) $\frac{1}{3}$
(ii) $\frac{2}{7}$
(iii) $1\frac{3}{4}$
(iv) $2\frac{2}{5}$
(v) $3\frac{1}{2}$
(vi) $5\frac{5}{7}$
(vii) $4\frac{2}{3}$
(viii) 8

Answer 1:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

Q2 | Ex-1B | Class 8 | RS AGGARWAL | chapter 1 | Rational Numbers | myhelper

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Question 2:

Represent each of the following numbers on the number line:
(i) $\frac{-1}{3}$
(ii) $\frac{-3}{4}$
(iii) $-1\frac{2}{3}$
(iv) $-3\frac{1}{7}$
(v) $-4\frac{3}{5}$
(vi) $-2\frac{5}{6}$
(vii) −3
(viii) $-2\frac{7}{8}$

Answer 2:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

Q3 | Ex-1B | Class 8 | RS AGGARWAL | chapter 1 | Rational Numbers | myhelper

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Question 3:

Which of the following statements are true and which are false?
(i) $\frac{-3}{5}$ lies to the left of 0 on the number line.
(ii) $\frac{-12}{7}$ lies to the right of 0 on the number line.
(iii) The rational numbers $\frac{1}{3}$ and $\frac{-5}{2}$ are on opposite sides of 0 on the number line.
(iv) The rational number $\frac{-18}{-13}$ lies to the left of 0 on the number line.

Answer 3:

(i) True
A negative number always lies to the left of 0 on the number line.

(ii) False
A negative number always lies to the left of 0 on the number line.

(iii) True
Negative and positive numbers always lie on the opposite sides of 0 on the number line.

(iv) False
The negative sign cancels off and the number becomes $\frac{18}{13}$; it lies to the right of 0 on the number line.