Q: What are the rules for adding fractions?

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adding fractions is like adding a WHOLE lot of parts of numbers

When adding or subtracting fractions their denominators must be the same

If their denominators are different then find their lowest common denominator by means of their lowest common multiple remembering to adjust their numerators accordingly before adding or subtracting.

Mixed numbers can be converted to improper fractions. Then, it is exactly the same as adding proper ones.

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adding fractions is like adding a WHOLE lot of parts of numbers

When adding or subtracting fractions their denominators must be the same

Used for adding dissimilar fractions

What is the definition of Adding and Subtracting Like Fractions

first must find Least Common Denominator http://www.loisterms.com/lois21.htm First of all, if you want to know about adding fractions, check out "How to Add Fractions". Be sure to follow the math examples carefully. To subtract fractions, follow the same steps as for adding, except subtract where you would add. Now about those positive and negative signs. The rules are the same whether you are working with integers or fractions. I will give you a method of learning the rules for the signs that has worked for many other students. Copy off this "Rules for Integers" chart and paste it on a large index card. Put the card in your math book or folder and refer to it often while you are doing your homework. If you keep using the card, you will get better with the signs.

If their denominators are different then find their lowest common denominator by means of their lowest common multiple remembering to adjust their numerators accordingly before adding or subtracting.

Mixed numbers can be converted to improper fractions. Then, it is exactly the same as adding proper ones.

adding fractions

For adding or substracting fractions first of all we should calculate the LCM( Lowest Common Multiplier) of the denominators in both of the fractions.

Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.

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.