## anonymous one year ago What is the Least Common Denominator of the fraction 2 over x plus the fraction x over x plus 1 plus the fraction x plus 1 over 3 x ?

1. anonymous

2. anonymous

it is really hard to read this in words, the equation editor below is your best bet

3. anonymous

my guess is $\frac{2}{x}+\frac{x}{x+1}+\frac{1}{3x}$

4. anonymous

of course i could be wrong

5. anonymous

That's right

6. anonymous

@satellite73

7. anonymous

suppose $$x=7$$ what is the least common multiple of $$7,8,21$$?

8. anonymous

No clue

9. anonymous

A pretty large number

10. phi

any idea what the common denominator is for 1/x and 1/(3x) ?

11. anonymous

Umm.

12. anonymous

Just x?

13. anonymous

I need this to finish my test Please hurry in helping

14. phi

if you have $\frac{1}{x} + \frac{1}{3x}$ you need the bottom (denominator) to be the same for both fractions I would multiply the first fraction by 3/3 so you get 3x in the bottom if you need to add a third fraction, multiply the denominators