Question

Okay so I have 4 questions
1.
Which list contains only common multiples of 3 and 6?
A. 3,6,9,12,15
B. 6,12,18,24,30
C. 20,30,40,50
D. 1,2,3,6

2.
I figured it out after writing this and didn't feel like changing it

3.
Which list contains the first 5 multiples of 7?
A. 28,35,42,49,56
B. 14,21,28,35,42
C. 7,14,21,28,35
D. 16,24,32,40,48

4.
What is the least common multiple that could be used to find the common denominator for the fractions 1/8 and 2/6?
A. 16
B. 8
C. 24
D. 48

Note: Please just leave either A, B, C, or D for the answers

Answer 1

#3
which list starts with a 7, and then all following are divisible by 7 ?

#4
8 = 2*2*2
6 = 2*3
So we need a number containing all those factors, I ge
2*2*2*3 = ....