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You need common denominators. Then add or subtract the numerators. If the answer is an improper fraction it is common practice to reduce it to a mixed number.

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Q: How do you add and subtract fractions in math?
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Related questions

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 :)

What school subject is fractions related to?

Math is related to fractions. if you look in a math book or just online then one of the math topics is fractions. You learn how to divide, multiply, add and subtract, simplify and more about fractions and what to do with them.

How do you add and subtract fractions with the same denominator?

it stay the same when you subtract fractions and when you add fractions.

What you need to add or subtract fractions?

You need a common denominator in order to add or subtract fractions.

How do you add and subtract dissimilar fractions?

Make the fractions equivalent then subtract

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,

How do you add two fractions that have like denominators?

In fractions, you can NEVER add or subtract

How are fractions used in math?

Often in Math, fractions are used to add, subtract, multiply, divide, or indicate the magnitude of measurements that will be involved in those operations. They can be used as numbers whenever the authentic number is not an integer.

Why are two fractions converted into like fractions?

Because you can't add or subtract fractions that have different denominators. Making them like fractions, by multiplying so the denominators are the same, you can add and/or subtract them.

To add and subtract fractions less than 1 you add or subtract only the what?


Is it important to know how to add and subtract fractions why?

it is important to learn how to add and subtract fractions because we can use it when a time comes , when we have our own business and others .