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To add or subtract fractions, they must have the same denominator. If they do not, make the least common multiple of all of the denominators the new denominator. After adding or subtracting, reduce your answer.

When giving the fractions like denominators, whatever number you multiply the old denominator of a fraction by, you must also multiply it by the numerator.

Sources:

See Also:
Least Common Denominators

www.mathsisfun.com/fractions_addition.html

There are 3 Simple Steps to

www.khanacademy.org/math/pre-algebra/fractions-pre-alg/fractions-unlike-denom-pre-alg/v/adding-fractions-with-unlike-denominators

It makes the process a lot easier, but you don't have to. Just find the common
denominator and multiply, divide,

www.khanacademy.org/math/pre-algebra/fractions-pre-alg/fractions-unlike-denom-pre-alg/e/adding_fractions

Practice

math.about.com/od/fractions/ss/denom.htm

Like many other topics in math, there is usually more than one method to get to the desired results. Adding fractions and finding common demoninators is merely another example of this. Multiplying denominators to find common denominators. More »

www.calculatorsoup.com/calculators/math/adding-fractions-calculator.php

Calculator for

www.mathplayground.com/fractions_add.html

www.MathPlayground.com. For fun and educational math games. created by
teachers, please visit. A. B. E. F. C. D.

www.mathplayground.com/howto_fractions_diffden.html

Math video teaches students how to

www.webmath.com/addfract.html

This page will show you how to

www.ask.com/youtube?q=Adding Fractions&v=RIhwfqULbAE

May 2, 2012 ... Adding fractions with different denominators, step by step, examples. For more
free math videos visit http://MathMeeting.com.

Popular Q&A

Q:
How to Solve Adding Fractions .

A:
1. Write out the fractions you wish to add on paper where you have room to figure. 2. Examine the denominators of the fractions . You cannot add fractions unless...
Read More »

Source:
www.ehow.com

Q:
What is adding fractions ?

A:
it is just what it sounds like. you take 2 or more fractions and add them. So 1/2 and 1/2 =2/2 or1.
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Source:
wiki.answers.com

Q:
What is the algorithm of adding fractions ?

A:
find a common denominator and then add the numerators and then simplify. and then pay me $5.
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wiki.answers.com

Q:
What is the rule adding fractions ?

A:
Build each fraction so that the denominators are the same. Add the numerators.
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Source:
www.chacha.com

Q:
What is the rule adding fractions ?

A:
Build each fraction so that the denominators are the same. Add the numerators. The
Read More »

Source:
www.chacha.com