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In subtraction you take away rather than add.

Also, addition is commutative, subtraction is not so the order of the numbers does matter for subtraction.

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โˆ™ 2013-01-12 19:19:51
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Q: How is subtracting fractions different from adding fractions?
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Related questions

How are adding fractions different?

When adding or subtracting fractions their denominators must be the same


What is the definition of adding and subtracting fractions with unlike denominators?

What is the definition of Adding and Subtracting Like Fractions


How do you minnous fractions?

To subtract fractions with like denominators, subtract the numerators , and write the difference over the denominator. Example : Find 45โˆ’25 . Since the denominators are the same, subtract the numerators.


Who invented adding and subtracting fractions?

Me


How are adding and subtracting fractions similar?

Subtracting a fraction is the same as adding its negative.


When will you need to find the multiples and factors?

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest terms


What are the rules for adding fractions?

Ensure that the denominators are the same when adding or subtracting fractions.


When is it useful to find the LCM or GCF of two or more numbers to solve a problem?

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest termsWhen adding or subtracting fractions with different denominators their lowest common multiple is needed and when reducing fractions to their lowest terms their greatest common factor is needed.


Why does the equivalent fraction make adding and subtracting fractions easier?

You cannot add or subtract fractions with different denominators. If the denominators are different then you need to work with equivalent fractions.


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

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


Why do you have to have a common denominator?

A common denominator is needed when adding or subtracting fractions of different denominators.


How do you solve all fractions problems?

You basically have to learn separately how to do different things with fractions, including finding a common denominator; converting fractions to a different denominator; simplifying fractions; adding and subtracting fractions; multiplying fractions; dividing fractions.


When adding or subtracting fractions do you have to have the numerator the same or denominator?

The denominators must be the same, the numerators can be different.


What did you learn from adding and subtracting fractions?

I learned to always change the denominators before adding or subtracting the numerators. You must always have a common denominator before adding or subtracting.


What is a real world situation where it is useful to know about factors and multiples?

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest terms.


What are the Rules of adding and subtracting dissimilar fractions?

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.


Adding and subtracting fractions?

Pulled and mulled


How is the LCM used in everyday life?

When adding or subtracting fractions with different denominators the LCD is found with the LCM.


What is the practical use of HCF and LCM?

For adding and subtracting fractions with different denominators and reducing them to their lowest terms.


How can you decide if common multiples or common factors is helpful in a problem?

When adding or subtracting fractions with different denominators


How is subtracting fractions like adding fractions?

You need a common denominator for both.


Before adding or subtracting Why are fractions turned into like fractions?

They have to have the same denominator.


Do you always have to find common denominator when working with fractions?

No. Only if you're adding or subtracting and then only if the denominators are different.


What is an LCD in math?

LCD means lowest common denominator which is needed when adding or subtracting fractions that have different denominators.


What are the rules for adding subtracting multiplying and dividing fractions?

no answer