Best Answer

to add a fraction, get a common denominator, then add the numerators.

example:

2/10+4/5

first get common denominators

2/10+8/10

then add the numerators

10/10

(simplify)

1

to subtract from a fraction, get common denominator, then subtract the numerators.

example:

4/5-2/10

first get common denominators

8/10-2/10

then subtract the numerators

6/10

(simplify)

3/5

Q: What is the difference between adding and subtracting fractions?

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What is the definition of Adding and Subtracting Like 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.

When adding or subtracting fractions first make sure that the denominators are the same if they aren't then find the lowest common denominator and alter the fractions accordingly

Not always but they need to have the same denominators when adding or subtracting them.

To combine the fractions or subtract the fractions. Same method with mixed numbers.

Related questions

What is the definition of Adding and Subtracting Like Fractions

Subtracting a fraction is the same as adding its negative.

Anything having to do with adding or subtracting unlike fractions.

When adding or subtracting fractions their denominators must be the same

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

Me

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

Pulled and mulled

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

A Common Denominator

no answer

You need a common denominator for both.