what's a common denomntaiar for 3,4,6,8

Question

it is a circle graph.

Answer 1

I am not sure about the circle graph, but I can show you how to find the common denominator.  I assume that the listed numbers are the denominators of your fractions.

The factors of each number are:

3: 3

4: 2 X 2

6: 2 X 3

8: 2 X 2 X 2

Since 8 has three twos as factors, and no other number has more, the common denominator will have three twos.  Since 3 and 6 each have 3 as a factor, the least common denominator is going to be:

2 X 2 X 2 X 3 = 24

 

Answer 2

 

1) find your largest denominator  (in this case 8), and use multiples of that number, starting with 1.

 

use:  8   (= 8 x 1)   

 

2) do all other denominators (3,4,6) divide evenly into 8).
    NO.  3 and 6 don't go evenly, so use next multiple of 8

 

use: 16  (= 8 x 2)

 

A repeat step #2, but using 16  (do 3,4,6 divide evenly into 16)

    NO. 3 and 6 still don't divide evenly to 16, so try next multiple of 8

 

use: 24 (= 8 x 3)

 

ok, we find all the numbers (3,4,6) divide evenly into 24.   (3x8, 4x6, 6x4)

 

So 24 IS your lowest common denominator.   (so in general, just use steps 1 and 2 for any problem)

 

 

Answer 3

The lowest common denominator for 3,4,6,8 is 24