NCERT Class 7 Maths Part 2 Chapter 3 Finding Common Ground Worksheet with Answers
NCERT Class 7 Maths Part 2 Chapter 3 Finding Common Ground Worksheet with Answers
Class 7 Maths Part 2 Chapter 3 Worksheet
Fill in the Blanks
1. HCF stands for __________.
Answer: Highest Common Factor
2. LCM stands for __________.
Answer: Least Common Multiple
3. The HCF of 18 and 24 is __________.
Answer: 6
4. The LCM of 8 and 12 is __________.
Answer: 24
5. The HCF of two co-prime numbers is __________.
Answer: 1
Write True or False
6. The HCF of two numbers can never be greater than either number.
Answer: True
7. The LCM of two numbers is always less than their HCF.
Answer: False
8. Co-prime numbers have HCF equal to 1.
Answer: True
9. Prime factorization can be used to find HCF and LCM.
Answer: True
10. The LCM of two co-prime numbers is their product.
Answer: True
Short Answer Questions
11. Find the HCF of 20 and 30.
Answer: 10
12. Find the LCM of 15 and 20.
Answer: 60
13. Find the HCF of 24 and 36.
Answer: 12
14. Find the LCM of 9 and 6.
Answer: 18
15. Why are HCF and LCM useful in mathematics?
Answer: They are useful for solving problems involving grouping, sharing, fractions, multiples, and finding common intervals.
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