ANSWER KEY
Multiple Choice questions:
1. (a) 25/20
2. (b) Two halves
3. (b) 5/7
4. (b) 41/49
5. (d) 1/4
6. (c) All value of x
7. (b) Unlike fractions
8. (b) equal to 1
9. (c) 1 3/9
10. (c) unit fraction
11. (b) 24
12. (c) Fraction
13. (c) 17/20
14. (c) 5/18
15. (c) 2/3
Match The Following:
Fill in the blanks:
1. 1/2 of it is 18.
2. 2/3 of it is 24.
3. If I make a bench of 20 small boxes, the fraction becomes 5/9.
4. 30 boxes are required if fraction is 5/6.
True /False:
1. True
2. True
3. False
4. False
Very Short Answer:
1.
2. 3/4 means 3 parts out of 4 parts.
5. 19/6=9÷6
6. 10/10 is 1 whole, which can be shown by the point 1.
7.
8.
9. (a) Shaded portion represents 1/4
(b) Shaded portion represents 2/6
10. Natural numbers from 1 to 15 are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 Prime
numbers from 1 to 15 are 2, 3, 5, 7, 11, 13, i.e., 6 prime numbers.
∴ Fraction of prime numbers = 6/15
Short Answer:
1. Here, the numerators of all the fractions are same
2. (a) Proper fractions with denominator 7 are: 2/7 , 3/7 and 5/7
Improper fractions with denominator 7 are: 9/7 , 11/7 and 13/6
(b) Proper fractions with numerator 9 are: 9/11 and 9/17
Improper fractions with numerator 9 are: 9/2 and 9/15
5.
6.
Long Answer:
1.
2. Space of the wall painted by Simran = 2/3
Space of the wall painted by Rahul = 1/5
Assertion and Reason Answers:
(1)(a) Both A and R are true and R is the correct explanation of A
(2)(d) A is false but R is true