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Question (1)

QN009239

Which of the following is a rational number?

(A) √2
(B) π
(C) 3/7
(D) √5

Correct Answer: C

Explanation:

A rational number can be written in the form p/q.

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Question (2)

QN009240

A rational number is defined as a number that can be written in the form:

(A) p + q
(B) p/q, q ≠ 0
(C) p × q
(D) p – q

Correct Answer: B

Explanation:

Rational numbers are expressed as p/q where q ≠ 0.

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Question (3)

QN009241

Which of the following fractions is in lowest form?

(A) 8/12
(B) 15/25
(C) 7/18
(D) 21/35

Correct Answer: C

Explanation:

7 and 18 have no common factor except 1.

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Question (4)

QN009242

The denominator of a rational number can never be:

(A) 1
(B) –3
(C) 10
(D) 0

Correct Answer: D

Explanation:

Division by zero is undefined.

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Question (5)

QN009243

Which of the following represents a negative rational number?

(A) 5/9
(B) –4/7
(C) 0
(D) 11/13

Correct Answer: B

Explanation:

A negative sign in numerator or denominator makes the rational number negative.

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Question (6)

QN009244

Find the rational number halfway between 1/3 and 2/3.

(A) 1/2
(B) 1/4
(C) 2/5
(D) 5/6

Correct Answer: A

Explanation:

(1/3 + 2/3)/2 = 1/2

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Question (7)

QN009245

Which statement is true about rational numbers?

(A) They cannot be negative.
(B) They can always be expressed as fractions.
(C) They never terminate.
(D) They are all integers.

Correct Answer: B

Explanation:

Every rational number can be written as p/q.

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Question (8)

QN009246

Evaluate: 3/5 + 2/5

(A) 1
(B) 5/10
(C) 6/5
(D) 2/5

Correct Answer: A

Explanation:

3/5 + 2/5 = 5/5 = 1

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Question (9)

QN009247

Evaluate: 7/8 – 3/8

(A) 1/2
(B) 4/16
(C) 5/8
(D) 3/4

Correct Answer: A

Explanation:

7/8 – 3/8 = 4/8 = 1/2

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Question (10)

QN009248

Which of the following lies between 2/5 and 3/5?

(A) 1/5
(B) 1/2
(C) 4/5
(D) 5/6

Correct Answer: B

Explanation:

1/2 = 0.5 lies between 0.4 and 0.6.

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Question (1)

Which of the following is a rational number?

Explanation:

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Question (2)

A rational number is defined as a number that can be written in the form:

Explanation:

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Question (3)

Which of the following fractions is in lowest form?

Explanation:

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Question (4)

The denominator of a rational number can never be:

Explanation:

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Question (5)

Which of the following represents a negative rational number?

Explanation:

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Question (6)

Find the rational number halfway between 1/3 and 2/3.

Explanation:

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Question (7)

Which statement is true about rational numbers?

Explanation:

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Question (8)

Evaluate: 3/5 + 2/5

Explanation:

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Question (9)

Evaluate: 7/8 – 3/8

Explanation:

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Question (10)

Which of the following lies between 2/5 and 3/5?

Explanation:

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