# MCQ Questions for Class 8 Maths Chapter 1 Rational Numbers with Answers

Students are advised to solve the Rational Numbers Multiple Choice Questions of Class 8 Maths to know different concepts. Practicing the MCQ Questions on Rational Numbers Class 8 with answers will boost your confidence thereby helping you score well in the exam.

Explore numerous MCQ Questions of Rational Numbers Class 8 with answers provided with detailed solutions by looking below.

Question 1.

Which of the following forms a pair of equivalent rational numbers?

(a) \(\frac { 24 }{ 40 }\) and \(\frac { 35 }{ 50 }\)

(b) \(\frac { -25 }{ 35 }\) and \(\frac { 55 }{ -77 }\)

(c) \(\frac { -8 }{ 15 }\) and \(\frac { -24 }{ 48 }\)

(d) \(\frac { 9 }{ 72 }\) and \(\frac { -3 }{ 21 }\)

## Answer

Answer: (b) \(\frac { -25 }{ 35 }\) and \(\frac { 55 }{ -77 }\)

Question 2.

Which number is in the middle if \(\frac { -1 }{ 6 }\), \(\frac { 4 }{ 9 }\), \(\frac { 6 }{ -7 }\), \(\frac { 2 }{ 5 }\) and \(\frac { -3 }{ 4 }\) arranged in descending order?

(a) \(\frac { 2 }{ 5 }\)

(b) \(\frac { 4 }{ 9 }\)

(c) \(\frac { -1 }{ 6 }\)

(d) \(\frac { -6 }{ 7 }\)

## Answer

Answer: (c) \(\frac { -1 }{ 6 }\)

Question 3.

Find the multiplicative inverse of -13.

(a) 13

(b) -13

(c) \(\frac { -1 }{ 13 }\)

(d) 12

## Answer

Answer: (c) \(\frac { -1 }{ 13 }\)

Question 4.

Which of the following statements is true?

(a) Every fraction is a rational number.

(b) Every rational number is a fraction.

(c) Every integer is a rational number.

(d) Both (a) and (c).

## Answer

Answer: (d) Both (a) and (c).

Question 5.

Which of the following is the identity element under addition?

(a) 1

(b) -1

(c) 0

(d) None of these

## Answer

Answer: (c) 0

Question 6.

What is the additive inverse of \(\frac { -2 }{ 3 }\)?

(a) 0

(b) 1

(c) \(\frac { 2 }{ 3 }\)

(d) \(\frac { -2 }{ 3 }\)

## Answer

Answer: (c) \(\frac { 2 }{ 3 }\)

Question 7.

Write the additive inverse of \(\frac { 4 }{ 5 }\).

(a) 1

(b) \(\frac {-4 }{ 5 }\)

(c) \(\frac { 4 }{ 5 }\)

(d) 0

## Answer

Answer: (b) \(\frac {-4 }{ 5 }\)

Question 8.

Which among the following is a rational number equivalent to \(\frac { -5 }{ -3 }\) ?

(a) \(\frac { -25 }{ 15 }\)

(b) \(\frac { 25 }{ -15 }\)

(c) \(\frac { 25 }{ 15 }\)

(d) \(\frac { -25 }{ 30 }\)

## Answer

Answer: (c) \(\frac { 25 }{ 15 }\)

Question 9.

Which of the following is the reciprocal of the reciprocal of a rational number?

(a) -1

(b) 1

(c) 0

(d) The number itself

## Answer

Answer: (d) The number itself

Question 10.

How is \(\frac { -28 }{ 84 }\) expressed as a rational number with numerator 4?

(a) \(\frac { 4 }{ 7 }\)

(b) \(\frac { -4 }{ 12 }\)

(c) \(\frac { 4 }{ 12 }\)

(d) \(\frac { 4 }{ -7 }\)

## Answer

Answer: (b) \(\frac { -4 }{ 12 }\)

Question 11.

The value of \(\frac { 1 }{ 2 }\) × \(\frac { 3 }{ 5 }\) is equal to:

(a) \(\frac { 1 }{ 2 }\)

(b) \(\frac { 3 }{ 10 }\)

(c) \(\frac { 3 }{ 5 }\)

(d) \(\frac { 2 }{ 5 }\)

## Answer

Answer: (b) \(\frac { 3 }{ 10 }\)

Question 12.

What should be subtracted from \(\frac { -7 }{ 11 }\) to get −2?

(a) \(\frac { 15 }{ 11 }\)

(b) \(\frac { -15 }{ 11 }\)

(c) \(\frac { 29 }{ 11 }\)

(d) \(\frac { -29 }{ 11 }\)

## Answer

Answer: (a) \(\frac { 15 }{ 11 }\)

Question 13.

Which of the following is the Multiplicative identity for rational numbers?

(a) 1

(b) -1

(c) 0

(d) None of these

## Answer

Answer: (a) 1

Question 14.

________ is not associative for rational numbers.

(a) Subtraction or Division

(b) Addition or Multiplication

(c) Addition or Division

(d) Multiplication or Division

## Answer

Answer: (a) Subtraction or Division

Question 15.

Which of the following is the Multiplicative identity for rational numbers?

(a) 1

(b) -1

(c) 0

(d) None of these

## Answer

Answer: (a) 1

Question 16.

A number which can be written in the form, p/q where p and q are integers and _____ is called a rational number.

(a) q = 0

(b) q ≠ 0

(c) q = 1

(d) none of these

## Answer

Answer: (b) q ≠ 0

Question 17.

The value of \(\frac { 1 }{ 2 }\) + \(\frac { 1 }{ 4 }\) is equal to:

(a) \(\frac { 3 }{ 4 }\)

(b) \(\frac { 3 }{ 2 }\)

(c) \(\frac { 2 }{ 3 }\)

(d) 1

## Answer

Answer: (a) \(\frac { 3 }{ 4 }\)

Question 18.

Find the multiplicative inverse of \(\frac { 1 }{ 4 }\).

(a) 4

(b) \(\frac { -1 }{ 4 }\)

(c) -4

(d) \(\frac { 1 }{ 4 }\)

## Answer

Answer: (a) 4

Question 19.

Which of the following is the reciprocal of a rational number?

(a) -1

(b) 1

(c) 2

(d) Both a and b

## Answer

Answer: (d) Both a and b

Question 20.

What is the sum of the additive inverse and multiplicative inverse of 2?

(a) \(\frac { 3 }{ 2 }\)

(b) \(\frac { -3 }{ 2 }\)

(c) \(\frac { 1 }{ 2 }\)

(d) \(\frac { -1 }{ 2 }\)

## Answer

Answer: (b) \(\frac { -3 }{ 2 }\)

Question 21.

Which of the following statements is true?

(a) Every fraction is a rational number.

(b) Every rational number is a fraction.

(c) Every integer is a rational number.

(d) Both (a) and (c).

## Answer

Answer: (d) Both (a) and (c).

Question 22.

Find the reciprocal of -2.

(a) 2

(b) -2

(c) \(\frac { -1 }{ 2 }\)

(d) None of these

## Answer

Answer: (c) \(\frac { -1 }{ 2 }\)

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