Best Answer

Because think of like fractions as the same things.. you can subtract halves from halves for example, but what does it mean to take away a half from a third?

By converting them into like fractions, we can add or subtract them easily.

Q: Why is it necessary to convert two fractions into like fractions before adding and subtracting them?

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

Subtracting a fraction is the same as adding its negative.

When adding or subtracting fractions their denominators must be the same

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

Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.

Related questions

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

A common denominator.

What is the definition of Adding and Subtracting Like Fractions

If you are adding or subtracting unlike fractions, convert them to equivalent fractions with a common denominator.

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

Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.

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.