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Q: What is always needed to add fractions?

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a common denominator

A common denominator is required to add or subtract fractions and not otherwise.

No, the denominators have to be the same.

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

In fractions, you can NEVER add or subtract

No.

Fractions will need to have the same denominator to add the numerator then reduce the answer as needed to simplest forms. 1/2 + 1/3=3/6 + 2/6=5/6

They didn't. It isn't supposed to add up to one, rather fractional amounts can be formed by adding various combinations of the fractions. If the eguptions needed to represent the value 1, they wouldn't do it with fractions.

Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.

no

add by adding

Fundamental math skills are needed for a job in accounting. An accountant must know how to add, subtract, divide, multiply, and do fractions.

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

You can add fractions if you have a scientific calculator. All you have to do is press the b/c button. If you don't have one, you could always turn the fraction into a decimal.

You first have to make the denominators the same. After this, you add the tops normally. Then, you reduce/simplify if needed.

with a calculator

No.

Change them to like fractions and proceed.

Because all that is needed is to add the numerators as for example 3/12 plus 4/12 equals 7/12

SUBTRACTION: You first turn both mixed numbers into improper fractions. If needed, change the denominators into like denominators. Next, subtract the two improper fractions and reduce if necessary. ADDITION: If needed, turn denominators so they are the same number. Next, add and reduce if necessary.

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.

Make the fractions equivalent then subtract

The usual rules of addition of fractions apply.

Because to add fractions, the denominators must be equal.

you make fractions equivalent denominators, you add the numerators and put it over the denominator