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Mathematics 18 Online
OpenStudy (zab505):

2 1/6*3 2/5

OpenStudy (goldphenoix):

What is 2 1/6 as an improper fraction?

OpenStudy (zab505):

Yes

OpenStudy (goldphenoix):

Then what is 2 1/6 as an improper fraction?

OpenStudy (zab505):

13/6?

OpenStudy (goldphenoix):

Correct. What is 3 2/5 as an improper fraction?

OpenStudy (zab505):

17/5.

OpenStudy (goldphenoix):

Good. So after converting both fractions into an improper fractions, it should look like: |dw:1373481598108:dw| You know how to do the rest, correct?

OpenStudy (zab505):

I attempted the rest, but I did not come up with one of the optional answers which are: 7 11/30, 6 1/10, 6 1/15, and 5 23/30.

OpenStudy (anonymous):

(13 * 17) / (6 * 5)......what do you get ?

OpenStudy (goldphenoix):

Well. What did you get as your final answer?

OpenStudy (goldphenoix):

Also, explain what you did. :)

OpenStudy (anonymous):

your gonna have to turn your improper fraction back into a mixed number

OpenStudy (goldphenoix):

Are you here? @zab505

OpenStudy (zab505):

yes

OpenStudy (goldphenoix):

What did you get as your final answer?

OpenStudy (zab505):

221/1

OpenStudy (goldphenoix):

What did you do first?

OpenStudy (zab505):

I made it into an improper fraction 65/30*102/30

OpenStudy (goldphenoix):

Wait... What happened to the fractions I gave you?

OpenStudy (goldphenoix):

I think I know what you did wrong. Did you want to find the common demoniator for the 2 fractions?

OpenStudy (zab505):

Well I have to multiply both fractions

OpenStudy (goldphenoix):

You don't need to find a common demoniator for the 2 fractions. :) The only time when you need to find a common demoniator is when you're either subtracting or adding fractions. Even if you find the common demoniator properly, you can still find the answer.

OpenStudy (zab505):

Oh...

OpenStudy (zab505):

So then what would I do next?

OpenStudy (goldphenoix):

OpenStudy (goldphenoix):

Make sense so far?

OpenStudy (zab505):

So you multiply both the numerator and denominator?

OpenStudy (goldphenoix):

Yes. What do you get?

OpenStudy (zab505):

221/30

OpenStudy (goldphenoix):

Great. Now we must convert it back to a mixed number. Do you know how?

OpenStudy (zab505):

Yes divide 221 by 30

OpenStudy (goldphenoix):

Alright. What do you get?

OpenStudy (zab505):

Oh 7 11/30 Thank you so much!

OpenStudy (goldphenoix):

No problem. :) I hope this help!

OpenStudy (zab505):

Um Do you know how to do 14/68 with remainders?

OpenStudy (goldphenoix):

What do you mean?

OpenStudy (zab505):

OpenStudy (goldphenoix):

You can use a calculator if you want, or you can do it another way. |dw:1373483261733:dw| Does it look familar so far?

OpenStudy (zab505):

Sorry wrong one

OpenStudy (goldphenoix):

Oh. Well this is easier. |dw:1373483407875:dw| So you don't know how to do divide it with this method?

OpenStudy (zab505):

No

OpenStudy (anonymous):

long division ?

OpenStudy (anonymous):

that is easy

OpenStudy (goldphenoix):

Alright. So what's the maxinmum time 14 can go into 68 sucessfully?

OpenStudy (goldphenoix):

Here. Pick any reasonable number.

OpenStudy (zab505):

4 times

OpenStudy (zab505):

Oh thank you!

OpenStudy (anonymous):

14 x 4 = 56 68 - 56 = what ?

OpenStudy (goldphenoix):

Alright. You got it. 14 * 4 = 56 If you do 14 *5, it will be over 68. So. It would look like... |dw:1373483649649:dw|

OpenStudy (goldphenoix):

Making sense so far?

OpenStudy (zab505):

Yes!

OpenStudy (goldphenoix):

|dw:1373483709665:dw|

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