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

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Q: Why does the equivalent fraction make adding and subtracting fractions easier?
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Related questions

How do you subtract fractions with negative fractions?

Subtracting a negative fraction is the same as adding its positive equivalent.


How are adding and subtracting fractions similar?

Subtracting a fraction is the same as adding its negative.


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.


What is the meaning of LCD Fraction?

The Lowest Common Denominator is needed when adding or subtracting fractions.


Why are equivalent fractions important when adding and subtracting fractions?

Because to add or subtract two fractions you first have to find equivalent fractions for both which have the same denominator.


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

What is the definition of Adding and Subtracting Like Fractions


What must you do first before adding or subtracting unlike fractions?

you must make the fractions equivalent and with the same denomenator


What types of problems can be solved using the the LCM?

Anything having to do with adding or subtracting unlike fractions.


How are adding fractions different?

When adding or subtracting fractions their denominators must be the same


What are the rules for adding fractions?

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


Who invented adding and subtracting fractions?

Me


What problems can be solved using gcf and LCM?

Finding the LCM will make adding and subtracting fractions easier.