LCM Worksheet for Class 5

🔢 Answer Key – LCM Worksheet

A. Find the LCM

1. 4, 6 → 12
2. 5, 10 → 10
3. 3, 8 → 24
4. 6, 9 → 18
5. 7, 14 → 14
6. 8, 12 → 24

B. Prime Factorisation

1. 12 and 18 → 36
2. 15 and 20 → 60
3. 16 and 24 → 48
4. 18 and 30 → 90
5. 21 and 28 → 84
6. 24 and 36 → 72

C. Choose the correct answer

1. b) 15
2. b) 8
3. b) 30
4. c) 35
5. b) 12

D. Fill in the blanks

1. 6
2. 12
3. 18
4. 30

E. Match

1. 2 and 3 → b) 6
2. 4 and 5 → a) 20
3. 3 and 6 → d) 6
4. 4 and 6 → c) 12

F. Word Problems

1. 12 minutes
2. 40 days
3. 18 seconds

G. Challenge Corner

1. LCM of 6, 8 and 12 → 24
2. Smallest number divisible by 4, 5 and 6 → 60

💡 Quick Think

LCM of 8 and 16 → 16