Best Answer

You multiply the fractions until the denominators are equal. Then, you subtract.

Q: What are the rules for subtracting fractions?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

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

no answer

If the denominators are the same (which is what I understand by "similar fractions"), just subtract the numerators (the upper part).

It means you have to subtract 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.

Related questions

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

no answer

What is the definition of Adding and Subtracting Like Fractions

If the denominators are the same (which is what I understand by "similar fractions"), just subtract the numerators (the upper part).

subtracting fractions

It means you have to subtract 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.

Anything having to do with adding or subtracting unlike fractions.

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

Me

yes you should use a common denominator when subtracting with fractions, it makes it much easier.

Subtracting a fraction is the same as adding its negative.