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| Maths Quiz for Class 7 Rational Numbers |
In this post, you will find 20 online maths quiz questions
for class 7 rational numbers. Online maths quiz will take around 20 minutes to
complete it.
Question 1: Which of the following is a negative rational number?
A) -2/-5
B) -3/-7
C) -5/9
D) 7/10
Explanation: -5/9 is a negative rational number.
Question 2: The equivalent rational number of -4/7 is ___________.
A) -20/35
B) 20/35
C) -20/-35
D) -20/28
Explanation: -4/7 = (-4 × 5)/(7 × 5) = -20/35
Question 3: On a number line, -5/2 lies between ______________.
A) -2 and -3
B) -1 and -2
C) 1 and 2
D) 2 and 3
Explanation: -5/2 = -2.5, which lies between -2 and -3.
Question 4: The standard form of 8/-12 is ___________.
A) 2/-3
B) -2/3
C) 4/-6
D) -4/6
Explanation: 8/-12 = 2/-3 but in a standard form, the minus sign is written always in numerator. So, standard form is -2/3.
Question 5: Which of the following is the greatest rational numbers?
A) -1/8
B) 1/9
C) -1/3
D) -1/2
Explanation: A positive rational number is always greater than a negative rational number. So, 1/9 is the greatest.
Question 6: Which of the following is the smallest rational numbers?
A) 5/9
B) 2/7
C) -4/7
D) -2/7
Explanation: Both the negative numbers -4/7 an -2/7 are smaller than the positive numbers 5/9 and 2/7. Now, between -4/7 and -2/7, -4/7 is the smallest.
Question 7: Which of the following rational numbers lies between -2/5 and -6/7?
A) -6/5
B) -1/2
C) 3/5
D) -7/8
Explanation: -1/2 lies between -2/5 and -6/7.
Question 8: A rational number between 10/17 and 2/3 is ___________.
A) -2/9
B) -1/2
C) 5/2
D) 3/5
Explanation: A rational number between 10/17 and 2/3 = 12/20 = 3/5
Question 9: 3/5 + (-7/10) = __________
A) -1/10
B) -1/5
C) -4/5
D) -4/10
Explanation: 3/5 + (-7/10) = 6/10 – 7/10 = -1/10
Question 10: (-2/9) + (-1/3) = ________
A) 5/9
B) -3/9
C) -5/9
D) -3/12
Explanation: (-2/9) + (-1/3) = -2/9 – 3/9 = -5/9
Question 11: (6/7) – (-3/14) = _________
A) 3/7
B) 15/14
C) 9/21
D) 3/14
Explanation: (6/7) – (-3/14) = 12/14 + 3/14 = 15/14
Question 12: (-2/9) – 5/6 = __________
A) 19/18
B) -19/18
C) -7/15
D) 7/15
Explanation: (-2/9) – 5/6 = -2/9 – 5/6 = -4/18 – 15/18 = -19/18
Question 13: (-5/7) × (-14/25) = __________
A) 2/5
B) -2/5
C) 70/25
D) -70/25
Explanation: (-5/7) × (-14/25) = 2/5
Question 14: (12/27) × (-3/4) = __________
A) -1/9
B) 1/3
C) 1/4
D) -1/3
Explanation: (12/27) × (-3/4) = -1/3
Question 15: (-10/15) ÷ (-2/5) = ___________
A) 2/3
B) -5/3
C) 5/3
D) 3/5
Explanation: (-10/15) ÷ (-2/5) = (-10/15) × (-5/2) = 5/3
Question 16: (27/32) ÷ (-3/4) = ____________
A) 9/8
B) -9/8
C) 8/9
D) -8/9
Explanation: (27/32) ÷ (-3/4) = (27/32) × (-4/3) = -9/8
Question 17: Write the rational number -19/25 as a decimal number.
A) -0.76
B) 0.76
C) 0.19
D) -0.19
Explanation: -19/25 = -76/100 = -0.76
Question 18: The decimal expansion of which rational number is non-terminating?
A) 14/35
B) 6/15
C) 15/21
D) 10/25
Explanation: 15/21 = 5/7 which is non-terminating.
Question 19: Write -1.3 as a rational number.
A) 13/10
B) -13/10
C) -1.3/10
D) -13/5
Explanation: -1.3 = -13/10
Question 20: A food restaurant requires 24 ½ kg of rice daily. There is only 15 ¼ kg of rice in the store room. How much more rice is required for the restaurant?
A) 9 ½ kg
B) 8 ¼ kg
C) 9 ¼ kg
D) 10 ¼ kg
Explanation: Required rice = 24 ½ - 15 ¼ = 49/2 – 61/4 = 98/4 – 61/4 = 37/4 = 9 ¼ kg
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