Question

How do you reduce a fraction?

Answer 1

Try a tutorial online, for example http://www.webmath.com/redfract.html and if you have a question come back and we help you for suere

Answer 2

Thank you.

Answer 3

You cancel factors that are common to the numerator and the denominator.

Answer 4

Please view my question

Answer 5

No, we won't.

Answer 6

@emunrradtvamg Thank you very much I don't really have anything else but if I do I know you'll help me (If your online).

Answer 7

Sure when I can, I try to help. That is what people are for.

Answer 8

Cool. Thanks again.

Answer 9

Can you help me w/ this?
Add the following fractions. Be sure to find the common denominator (multiple) and then simplify

Answer 10

Ok

Answer 11

Did you find a common denominator for them?

Answer 12

In the first equation (3/16) the only thing to do is to carry out numerical division. So you will end up with 0.1875

Answer 13

Ok

Answer 14

No he's got to add two fractions by finding a common denominator, then adding the numerators of the equivalent fractions. Not convert to decimal...

Answer 15

Ok sorry. Just got what you really want. Wait. I definitively know what you want.

Answer 16

Ok

Answer 17

Buggy, did you find a common denominator already?

Answer 18

From what?

Answer 19

What are the denominators for the fractions you are trying to add?

Answer 20

3\6 + 5\48

Answer 21

Those are the fractions (except it's 3/16). which part of the fraction is the denominator?

Answer 22

Oh ok. ?

Answer 23

Ok now Im gonna teach you how to get the common denominator.

Answer 24

\[\frac{Numerator}{Denominator}\]

Answer 25

Ok.

Answer 26

The part on bottom is the denominator.

Answer 27

Ok.

Answer 28

So now, what are the two denominators you are working with?

Answer 29

16 and 48.

Answer 30

Is that right?

Answer 31

Correct. Now, we are looking for common multiplies of those two numbers. So what are the multiples of 16?

Answer 32

16, 32, 48, 64, 80, 96, 112, 128, 144, 160,
176, 192, 208, 224, 240, 256, 272, 288, 304,

Answer 33

Did you figure that out? or type it in somewhere?

Answer 34

Right?

Answer 35

Do you see any multiples of 48 in that list?

Answer 36

Yes

Answer 37

What is the smallest multiple of 48 you see there?

Answer 38

3?

Answer 39

Ok the first thing you have to do is to divide the two numbers (16 and 48) in the denominator by 2. If they both are divisible by 2, then you save this number 2.

Next, you have to devide the remaining of the last divison by two again. the new two numbers are 8 and 26. If both numbers are divisible by 2 again. You save this number (2) again.

16 48 *
.----------
8 26 * 2 This number is saved
4 13 * 2 This number is saved too
*
Of course the remaining numbers are not divisible by 2 nor 3, and so on. This means the the common denominator is 2*2 =4

Question? Remember this is the first step

Answer 40

48 is the smallest multiple that 16 and 48 have in common.

Answer 41

Ok...

Answer 42

So what do I do w/ the 48?

Answer 43

So 16 * 3 = 48. Now we need to make both of the fractions have that denominator. Since 5/48 already has that for the denominator we don't need to change it.

Answer 44

So you can just write 5/48 on the next column over.

But to make 3/16 have a denominator of 48, we need to multiply the bottom by 3. In order to do that and keep the ratio the same, we must also multiply the top by 3.

Answer 45

? you lost me....

Answer 46

\[\frac{3}{48} * \frac{3}{3} = ?\]

Answer 47

Err.

\[\frac{3}{16} * \frac{3}{3}\]

Answer 48

We need to change the denominator of the 3/16 so it is also using our lowest common denominator.

Answer 49

We can multiply any number by 1 without changing it. Since 3/3 = 1, we can multiply our fraction by 3/3 and it will still have the same value.

Answer 50

But now it will have 48 for a denominator.

Answer 51

Hold on.... Let's move on to a different question...

Answer 52

If you are having trouble with this still I suggest this video:

http://www.khanacademy.org/video/adding-fractions-with-unlike-denominators?playlist=Developmental%20Math

Answer 53

Ok...

Answer 54

He explains very well the process for doing this.

Answer 55

Ok...

Answer 56

(Including mine,) You have 56 replies!

Answer 57

You can divide both numerator and denominator by the greatest common divisor of the two. ;-)

Answer 58

Cool thanks..