Hi my daughter is having trouble with an assignment. She is asked to write in her journal how to find a common denominator? She has to construct cubes and the first problem is 1/3 and 2/12

- anonymous

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- anonymous

ok so to find a common denominator first you need to know what a denominator is. a denominator is the bottom number under a fraction

- anonymous

so all you have to do is find the first common times that 3 and 12 go into

- anonymous

3 goes into 12 pretty easy when you times it by 4 so whatever you do to the bottom you do to the top. so it would be 4/12 and 2/12 because we didn't have to times the 12 by anything it stayes the same

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- anonymous

does that help?

- anonymous

ARE you there?

- anonymous

understand. But she is not allowed to use LCM on her assignment. The problem I wrote are two different problems. Can you still help us?

- anonymous

Yes

- anonymous

LCM? sorry i havn't heard that term or i musv't forgot? sorry

- anonymous

Least common denominator is the abbreviation.

- anonymous

oh ok but isn't that what is asked?

- anonymous

I'm haven't done fractions in so long sorry. She is a fourth grader and I'm a little rusty.

- anonymous

You need the LCD, not the LCM right?

- anonymous

Yeah sorry

- anonymous

And what is the problem again?

- anonymous

She has to find the common denominator and use blocks to shade in the fraction. 1/3 is the first and 2/12 is second

- anonymous

common denominator of 1/3 and 2/12?

- anonymous

The least common denominator of 1/3 and 2/12 is 6.

- anonymous

i CAN'T DO ANYTHING!!! :'(

- anonymous

dont listen to arada he is always wrong he knows nothing about math

- anonymous

\[\frac{2}{12} = \frac{2*1}{2*6} = \frac{1}{6}\]
\[\frac{1}{3} = \frac{2}{2}*\frac{1}{3} = \frac{2}{6}\]

- anonymous

Okay does she shade in the 6 blocks and leave one blank?

- anonymous

Do you have a digital camera? If so can you take a small picture of the problem and attach it here? I'm not sure what is being asked..

- anonymous

'Your daughter'? Your lies don't fall me! This is your homework, isn't it!

- anonymous

fool* fail

- anonymous

Really it's her homework. She has a journal book and she must explain her answers.

- anonymous

So I still don't understand the question, what is she asked to do?

- anonymous

She has to explain by using model blocks or cubes and show her work

- anonymous

I'm not sure how you'd do that.

- anonymous

I'm trying to understand what the teacher is asking. Not very clear about this assignment. What do I do?

- anonymous

As I said, can you attach a picture of the problem?

- anonymous

Otherwise ask her teacher about it.

- anonymous

How do I attach the problem?

- anonymous

Once you get a digital copy of it you just click the "attach file" button and navigate to the file, etc.

- anonymous

I hate to sound dumb but do I scan the paper and attach it the computer?

- anonymous

Do you have a digital camera?

- anonymous

yes

- anonymous

Take a picture and copy the file to your computer, then use the attach button on the website to upload it.

- anonymous

Well my camera is acting up!!!! I'm so frustrated!!

- anonymous

Just ask her teacher. They're generally pretty understanding about this sort of thing.

- anonymous

Here is the part 1of the problem. It says: Draw a model that represents each fraction below. The model should look like the connecting cubes you construct. 1/3 and 2/12

- anonymous

I really appreciate all of your help. I will E-mail her teacher so she can get a better understanding on this assignment. Thank you again.

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