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Q: How do you add or subtract fractions when negative?

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

-1/2+7/10

Make the fractions equivalent then subtract

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

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

In fractions, you can NEVER add or subtract

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.

Subtracting a negative fraction is the same as adding its positive equivalent.

Numerators

that's what she said

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.

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.

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.

Subtract and add the sign of the greater number.

If you subtract a negative from a positive, add both of their absolute values. If you subtract a positive from a negative, add both of their absolute values and multiply by negative one.

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.

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.

if both fractions are negative then add like normal then put a negative sign in front like this: -6/24 + -8/24 = - 14/24 now simplify. your answer is... -7/12 i hope this helped. (oh yeah, same thing with subtraction)

add? dont you mean subtract?

positive is to add and negative is to subtract in math