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The question is based on a complete misunderstanding of what is required. Unlike denominators are NOT required!

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โˆ™ 2017-08-05 10:19:48
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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: Why do fractions need to have unlike denominator before you add or subtract them?
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Related questions

Do you add and subtract like and unlike fractions in the same way?

no, to add and subtract like and unlike fractions the denominator has to be the same,


What are the steps to subtract unlike fractions?

first find a common denominator then subtract the top numbers


Why do you need to use common denominator?

To get the right answer when you add or subtract unlike fractions.


How do you subtract fractions with unlike?

Before you can add or subtract, both fractions must have the same denominator, andmaking that change without changing the value of either fraction is your job. The bestchoice for a 'common' denominator is usually the least common multiple of the originaldenominators.


What are like and unlike fractions?

Like fractions are the fractions which have the same denominator and unlike fractions are the fractions which do not have the same denominator.


How do you subtract Fractions with models unlike denominators?

The denominators need to be the same for subtraction. Find the Least Common Denominator for both items and then subtract.


What do you call fractions with not the same denominator?

"Unlike" fractions.


How are like fractions and unlike fractions different?

Like fractions have the same denominator, unlike fractions don't.


How is finding the least common multiple of two numbers helpful to adding fractions?

When those two numbers are the denominators of unlike fractions, finding the LCM (in this case, the LCD or least common denominator) and converting the unlike fractions to equivalent fractions with the same denominator will allow you to add and subtract them.


How do you add or subtract fractions with unlike denominators?

convert at least one of them so that they have the same denominator, then proceed with the addition or subtraction


Why do you find common denominators?

In order to add or subtract one fraction from another, they must have a common denominator, or the same denominator. That's because it's impossible to add two fractions that have a different number of parts.


What must a mathematician do before adding two unlike fractions?

Find the lowest common denominator


How do you add fractions with unlike denometiors?

You look for a common denominator; convert the fractions to equivalent fractions with the denominator you found; then you do the addition itself.


Subtract fractions with unlike denominators?

2/6


How do you solve unlike denominator fractions?

That depends what kind of calculation you want to do with the fractions.


How do you add and subtract fractions with unlike denominators without finding a common denominator?

The fastest and surest way to do that is to have a calculator that has a fraction button. (a b/c)


Adding unlike fractions?

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.


How can knowing the LCM help you add subtract and multiply fractions?

When adding and subtracting unlike fractions, it is necessary to find the LCM of the denominators, called the least common denominator. Once you have found the LCD, you can convert the fractions to equivalent fractions with a common denominator and proceed with the adding and/or subtracting. Finding an LCM will have no effect on multiplying fractions.


How do you solve a fraction problem when you don't have the same denominator?

If you are adding or subtracting unlike fractions, convert them to equivalent fractions with a common denominator.


How can knowing the gcf and lcm help you add subtract and multiply fractions?

Knowing the LCM of the denominators will help you to find a least common denominator of unlike fractions, which will allow you to add and subtract them successfully. Knowing the GCF and LCM will not help you in multiplying them, but knowing the GCF of the numerator and denominator of a fraction will help you reduce it if necessary.


How do you add fractions with unlike denomanators?

You first convert them to equivalent fractions with a common denominator. Or you convert them to decimal fractions.


What is a situation where you would use LCM?

To add and subtract unlike fractions.


When do you use LCM in math?

When you want to add or subtract unlike fractions.


How can using the GCF and LCM help you when you add subtract and multiply fractions?

When adding and subtracting unlike fractions, it is necessary to find a least common denominator. It's the same process as finding an LCM. You can simplify a fraction by finding the GCF of the numerator and denominator and dividing them both by it.


Why do you have to turn unlike fractions into like fractions to add or subtract?

because its just one of the rules of math :)