S.chand Class 8 Maths Solution Chapter 1 Rational Numbers Exercise 1A

Exercise 1A

---

Q1 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 1

Fill in the blanks :

(i) $\frac{7}{-8}$, expressed as a rational number with denominater 24=

(ii) $\frac{-4}{7} \ldots \ldots \ldots \frac{4}{-11} \quad(<,>,=)$

(iii) The absolute value of $\frac{-16}{-19}=$

(iv) The rational numbers whose absolute value is $\frac{11}{13}$ are

(v) The rational number which is neither positive nor negative is

Sol :

---

Q2 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 2

Answer True (T) or False (F):

(i) Every rational number is a whole number.

(ii) 0 is the smallest rational number.

(iii) Every fractional number is a rational number.

(iv) $\frac{4}{0}$ is a rational number.

(v) |x|=-x if x<0

Sol :

---

Q3 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 3

Write four rational numbers equivalent to each of the following rational numbers:

(i) $\frac{2}{5}$

(ii) $\frac{-5}{9}$

(iii) $\frac{8}{-11}$

(iv) $\frac{-12}{13}$

Sol :

---

Q4 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 4

Which of the symbols <,= or > should replace the blank space ?

(i) $\frac{8}{7}, \cdots \frac{12}{9}$

(ii) $\frac{-2}{3} \ldots \ldots \frac{4}{-7}$

(iii) $\frac{13}{-15}, \ldots \frac{10}{-11}$

(iv) $0 \ldots . \frac{-3}{-8}$

Sol :

---

Q5 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 5

Write the absolute value of:

(i) $\frac{5}{8}$

(ii) $\frac{-7}{10}$

(iii) 0

(iv) $\frac{11}{-12}$

Sol :

---

Q6 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 6

$-\frac{28}{84}$ expressed as a rational number with numerator 4 is

(a) $\frac{4}{12}$

(b) $\frac{4}{7}$

(c) $\frac{4}{-7}$

(d) $\frac{4}{-12}$

Sol :

---

Q7 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 7

Which of the following set of rational numbers is arranged in ascending order ?

(a) $-\frac{1}{2}, \frac{-3}{7}, \frac{-5}{14}, \frac{-25}{28}$

(b) $-\frac{25}{28},-\frac{1}{2},-\frac{3}{7},-\frac{5}{14}$

(c) $\frac{-25}{28},\frac{-5}{14},\frac{-3}{7},\frac{-1}{2}$

(d) $-\frac{5}{14},-\frac{25}{28},-\frac{3}{7},-\frac{1}{2}$

Sol :

High Order Thinking Skills

---

Q8 | Ex-1A | Class 8 | SChand | Composite Maths | Rational Numbers | myhelper

OPEN IN YOUTUBE

Question 8

Find the absolute value of :

$-1 \div \frac{-1}{5} \div \frac{1}{-5} \div \frac{-1}{-5}$

Sol :