Study guides

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

Write your answer...

Submit

Related questions

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 to add or subtract two fractions you first have to find equivalent fractions for both which have the same denominator.

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

The process of finding the LCM is the same as finding the least common denominator which is important when you want to add and subtract 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.

In fractions, you can NEVER add or subtract

It will help when you are trying to add and subtract fractions.

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

Numerators

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.

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.

Because to add fractions, the denominators must be equal.

You must know how to add, subtract, multiply and divide by some fractions.

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.

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

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

Yes.

When you are trying to add or subtract fractions with different denominators.

They are called like fractions.In order to add or subtract fractions you will usually need to convert them to like fractions. Then you simply add or subtract the numerators (as required) to form the numerator of the answer. The same (or common) denominator is the denominator of the answer. You may need to simplify the resulting fraction.

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

In order to subtract or add fractions the denominators must be the same and that's why the LCD must be found.

add? dont you mean subtract?