Equations with fractions

naevino

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Jan 20, 2010
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5
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

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Jun 18, 2007
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naevino said:
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

New member
Joined
Jan 20, 2010
Messages
5
Subhotosh Khan said:
naevino said:
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

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Mar 27, 2009
Messages
553
I think you meant : x + 5/4 = (3/4)(x)

4x + 5 = 3x

x = -5
 

mmm4444bot

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Oct 6, 2005
Messages
10,251
naevino said:
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

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Jan 23, 2010
Messages
1
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

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Nikki33 said:
2 4/7n - 5 1/2 - 4 1/6n +9
I'm thinking that those are all mixed numbers, except for 9.

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

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

Click here to go to lessons on fractions.

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.)
 
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