View Full Version : Equations with fractions

naevino

01-21-2010, 02:16 PM

hello, I have another problem I needed help on.

Here is the problem: Solve

x + 5/4 = 3/4x

Since both of the denominators are the same, what do I do now to clear the equation of the fractions so I can combine like terms?

Thank you so much. I really appreciate it!

Subhotosh Khan

01-21-2010, 02:31 PM

hello, I have another problem I needed help on.

Here is the problem: Solve

x + 5/4 = 3/4x

Since both of the denominators are the same, what do I do now to clear the equation of the fractions so I can combine like terms?

Thank you so much. I really appreciate it!

First multiply both sides by the LCM of all the denominators (in this case 4) to eliminate fraction. Then continue as before.....

naevino

01-21-2010, 02:53 PM

hello, I have another problem I needed help on.

Here is the problem: Solve

x + 5/4 = 3/4x

Since both of the denominators are the same, what do I do now to clear the equation of the fractions so I can combine like terms?

Thank you so much. I really appreciate it!

First multiply both sides by the LCM of all the denominators (in this case 4) to eliminate fraction. Then continue as before.....]

I have multiplied the fractions by 4 and I ended up with x +5+3x and my final answer is 5/2 is this correct? What am I doing wrong?

Thank you

Aladdin

01-21-2010, 03:03 PM

I think you meant : x + 5/4 = (3/4)(x)

4x + 5 = 3x

x = -5

mmm4444bot

01-21-2010, 09:07 PM

I ended up with x +5+3x Where is the equals sign?

To the left of the [Submit] button is the [Preview] button. You can use the [Preview] button to proofread your posts before submitting them. 8-)

Nikki33

01-23-2010, 09:02 PM

hi i have a math Question i need help on.

Can you help Me simplyfy it?

2 4/7n - 5 1/2 - 4 1/6n +9

mmm4444bot

01-23-2010, 09:41 PM

2 4/7n - 5 1/2 - 4 1/6n +9

I'm thinking that those are all mixed numbers, except for 9.

2 \frac{4}{7} \cdot n \;-\; 5 \frac{1}{2} \;-\; 4 \frac{1}{6} \cdot n \;+\; 9

Convert all of the mixed numbers to improper fractions, and then combine like-terms.

Click here to go to lessons on fractions. (http://www.coolmath.com/prealgebra/01-fractions/index.html)

If you need more help, please use the [NEWTOPIC] button on the board's index page to start your own discussion. (You posted your question at the end of somebody else's topic.)

Powered by vBulletin® Version 4.2.3 Copyright © 2019 vBulletin Solutions, Inc. All rights reserved.