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Subjects>Math>Math & Arithmetic

How do you subtract fractions with unlike?

Anonymous

∙ 11y ago

Updated: 9/18/2023

Before you can add or subtract, both fractions must have the same denominator, and

making that change without changing the value of either fraction is your job. The best

choice for a 'common' denominator is usually the least common multiple of the original

denominators.

Wiki User

∙ 11y ago

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Continue Learning about Math & Arithmetic

Do you add and subtract like and unlike fractions in the same way?

no, to add and subtract like and unlike fractions the denominator has to be the same,

What are the steps to subtract unlike fractions?

first find a common denominator then subtract the top numbers

When do you use LCM in math?

When you want to add or subtract unlike fractions.

How do you subtract fractions without alike denominators?

Convert unlike fractions to equivalent fractions with common denominators by finding the LCM of the denominators.

How do you add or subtract fractions with unlike denominators?

convert at least one of them so that they have the same denominator, then proceed with the addition or subtraction

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Related Questions

Do you add and subtract like and unlike fractions in the same way?

no, to add and subtract like and unlike fractions the denominator has to be the same,

What problems can be solved using gcf and LCM?

Finding the LCM will make adding and subtracting fractions easier.

What are the steps to subtract unlike fractions?

first find a common denominator then subtract the top numbers

What is a situation where you would use LCM?

To add and subtract unlike fractions.

When do you use LCM in math?

When you want to add or subtract unlike fractions.

Why do you have to turn unlike fractions into like fractions to add or subtract?

because its just one of the rules of math :)

How do you subtract fractions without alike denominators?

Convert unlike fractions to equivalent fractions with common denominators by finding the LCM of the denominators.

Why do you need to use common denominator?

To get the right answer when you add or subtract unlike fractions.

When you add or subtract fractions with unlike denominators why do you have to find LCM?

Because to add fractions, the denominators must be equal.

How do you add and subtract unlike positive and negative fractions?

-1/2+7/10

Why do fractions need to have unlike denominator before you add or subtract them?

The question is based on a complete misunderstanding of what is required. Unlike denominators are NOT required!

Why is it important to find the LCM of 2 numbers?

It will help when you want to add and subtract unlike fractions.

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