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# What is the common denominator of the numbers 8,9,13

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Posted on Apr 16, 2015

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Go here to see how to find. Lowest common denominator

Posted on Apr 16, 2015

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Posted on Jan 02, 2017

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I interpreted the question as:

(x-2)/(4-x) + 2/3 = (x-2)/12 or

(x-2) 2 (x-2)
------ + --- = -----
(4-x) 3 12

Now to find a common denominator.

I factor all the terms and see what is common, so it can be eliminated to leave the lowest common denominator.

(4 - x) - prime - cannot be factored

3 - prime - cannot be factored

12 - 4 x 3

What is common in the above? The 3, so we can eliminate one 3.

Common denominator - (4 -x) (3)(4)

So, we must multiply the numerator and denominator of the first term by 12 (3 x 4).

The next term's numerator and denominator must be multiplied by 4(4-x).

The term on the right of the equals sign must have the numerator and denominator multiplied by (4-x).

Good luck.

If you need more assistance, post again.

Paul

Apr 02, 2018 | Homework

### What is the improper fraction of 2/10

I think you want to reduce the fraction to the lowest terms.

Improper fraction 1 3/4 produces an improper fraction of 7/4 (1 times denominator plus numerator)

To reduce a fraction, we need to divide the numerator (number on top) and the denominator (number on the bottom) by the greatest common factor (GCF).

To get the GCF, find the factors of the numerators and denominators and find the greatest number that is in both lists.

The factors of 2 are 1, 2.

The factors of 10 are 1, 2, 5, 10.

The greatest (largest) number is both lists is 2, so we divide the numerator and denominator by 2 and get 1/5.

Good luck,

Paul

Feb 06, 2018 | Homework

### What is the lowest denominator

56 you have got to find the lowest number that both numerator and denominator will divide in to

Mar 13, 2017 | Miscellaneous

### How to solve franctions

Multiplying Fractions:
1. Make sure you're working with two fractions.
2. Multiply numerator x numerator, then multiply denominator x denominator.
Dividing Fractions:
1. Make sure you're working with two fractions
2. Flip the second fraction upside down.
4. Multiply top x top and bottom x bottom.
Converting Mixed Numbers into Improper Fractions:
1. Convert mixed numbers into improper fractions.
2. Take the whole (non-fraction) number and multiply it by the denominator.
4. Put that amount over the original denominator and you will have an improper fraction.
Method for Adding and Subtracting Fractions:
1. Find the lowest common denominator (bottom number). For both adding and subtracting fractions, you'll start with the same process.
2. Multiply fractions to match the lowest common denominator.
3. Add or subtract the two numerators (top number) but NOT the denominators.

Mar 07, 2017 | Homework

### How to compute fraction multiplication?

Multiply the numerators (the top numbers) and multiply the denominators (the bottom numbers).

As an example, 3/4 x 4/5 = (3 x 4)/(4 x 5) = 12/20. Now we should reduce it to lowest terms by dividing numerator and denominator by the greatest common factor. I divided the numerator and denominator by 4 and got 3/5.

Good luck.

Paul

Mar 09, 2015 | Office Equipment & Supplies

### What is a mixed number or in a fraction in simplest form 0.15%

A mixed number is a number composed of an integer (whole) number and a proper fraction, one that has a numerator less than the denominator. Example 2 1/3 =2+ 1/3. 2 is the integer part, and 1/3 is the proper fraction part.
Certain fractions can be simplified further because the numerator and denominator share a (common) factor. By cancelling the common factor in the numerator with the factor in the denominator,
one gets a fraction with smaller numerator and denominator.
For example the percentage you provide 0.15% can be converted to 15/10000.
Since 15 and 1000 are both multiples of 5, the number 5 is a common factor in both. 15=5*3, and 10000=5*2000
Cancel the two 5 (simplifying by 5) in numerator and denominator leaves 3/2000. Thus
0.15%= 0.15/100=0.0015=3/200
I hope that this makes sense to you.

Sep 04, 2014 | The Learning Company Achieve! Math &...

### How do you find the common denominator

The denominator is that number on the bottom of a fraction, so with 2 different fractions you want to get them in a form where they have the same denominator. Often you will be trying to find the lowest common denominator.

The usual procedure is to multiply one denominator into the top (numerator) of the other fraction. Then repeat this process with the denominator of the second fraction multiplied into the numerator of the first fraction. Then multiply the 2 denominators together and the result is the denominator now of both fractions.

Eg 2/3 and 5/7 become

14/21 and 15/21

Sometimes further simplification is possible where one fraction has a denominator which is a mltiple of the other. eg

2/3 and 5/6

In this case you only need to multiply on the first fraction

4/6 and 5/6

Aug 13, 2014 | SoftMath Algebrator - Algebra Homework...

### What do u mean common denominator

A quantity into which all the denominators of a set of fractions may be divided without a remainder.

Jun 28, 2010 | Mathsoft Mathcad Expert Solver Full...

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