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Q: How do you add and subtract like fractions?

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

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.

In fractions, you can NEVER add or subtract

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

Make the fractions equivalent then subtract

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

because its just one of the rules of math :)

If the fractions have the same denominator, add and subtract the numerators as if the denominators weren't there and put the result over that denominator. Reduce if possible. If the fractions have different denominators, find the LCM of the denominators and convert the fractions to equivalent fractions with like denominators. Then add and subtract the numerators as if the denominators weren't there and put the result over that denominator. Reduce if possible.

The same way you would add or subtract whole numbers, leaving the denominators alone.

Numerators

No, the denominators have to be the same.

You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.

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.

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 .

Because to add fractions, the denominators must be equal.

Yes.

To add and subtract fractions, you need common denominators. To find the common denominator, take the LCM of the denominators you wish to add or subtract.

In order to add or subtract fractions, they must have the same denominator.

When you add or subtract fractions with like denominators, you just add or subtract the numerators and put them over the same denominator. For example, 3/5 - 2/5 = (3 - 2)/5 = 1/5

The same as with positive ones. Make sure they have the same denominator and add or subtract their numerators.

To add and subtract fractions, you need common denominators. To find the common denominator, find the LCM of the denominators you wish to add or subtract.

To add and subtract unlike fractions, find the LCM of the denominators and convert them to equivalent like fractions. You don't have to do anything to fractions to multiply them, but you may need to reduce one after multiplying. To do that, find the GCF of the numerator and the denominator and divide both of them by it. If the GCF is 1, the fraction is in its simplest form.

because it would be diffcult to understand.[you don't add or subtract the demonters]

Whether the denominators are common or not.

When you want to add or subtract fractions.