The sum of

Question

x/3x-6+1/8

Answer 1

Shawna, is 3x in the denominator?  If so, then you have to find a common denominator.  The LCM of 3 and 8 is 24, but there is also an x, so our common denominator is 24x.

 

Since 3x is already in the denominator of the first term, then we are missing 8.  If we multiply by 8/8, we get 8x/24x

 

-6 has a denominator of 1 so we are missing 24x, so the second term becomes -144x/24x

 

1/8 is missing 3x, so we get 3x/24x

 

Now that we have a common denominator, we can add the numerators and put them all over the same denominator  (like 1/3 + 1/2 = 2/6 + 3/6 = 5/6)

 

(8x - 144x + 3x)/24x 

 

Combine like terms!  -133x/24x

 

Since x is common between the numerator and the denominator, and x/x = 1, then we just have -133/24 = -5 13/24

 

Hope this helps!

 

 

 

 

Answer 2

I assume you mean (x/3x-6) + (1/8).

 

First, you need to make both denominators equal each other in order to add the two fractions together.

To do this, you should multiply (x/3x-6)*(8/8) and multiply (1/8)*((3x-6)/(3x-6)). This will give a common denominator.

 

You should have (11x-6)/(24x-48) after simplifying.