Answer:
1. 4 = 2× 2, 8 = 2 × 2 × 2
LCM of 4 and 8 = 2 × 2 × 2 = 8
The correct answer is a.
2. 8 = 2 × 2 × 2, 10 = 2 × 5
LCM of 8 and 10 = 2 × 2 × 2 × 5 = 40
The correct answer is c.
3. 6 = 2 × 3, 8 = 2 × 2 × 2
LCM of 6 and 8 = 2 × 2 × 2 × 3 = 24
The correct answer is b.