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

it is a circle graph.

### 3 Answers by Expert Tutors

John R. | John R: Math, Science, and History TeacherJohn R: Math, Science, and History Teach...
4.6 4.6 (55 lesson ratings) (55)
2

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

Tim E. | High School and M.S. Math, Physics tutor - ret. Aerospace EngrHigh School and M.S. Math, Physics tutor...
5.0 5.0 (42 lesson ratings) (42)
0

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)