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Suppose you had the sum 3/4+1/8-5/6. First - make the fractions all the same... 3/4 = 6/8, so 6/8+1/8=7/8.

Next, you want to subtract 5/6. Again - make everything have the same denominator, so... 7/8 (from the previous sum) equals 21/24, and 5/6=20/24.

This gives you the final sum 21/24-20/24=1/24

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Q: How do you add two fractions together then subtract another?

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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.

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.

Fractions in decimal form are easy to compare and to add and subtract from one another.

The denominator (bottom number) must be the same for all the fractions being added or subtracted together.

Numerators

In order to add or subtract one fraction from another, they must have a common denominator, or the same denominator. That's because it's impossible to add two fractions that have a different number of parts.

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.

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.

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.

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.

add? dont you mean subtract?

you take away one of the whole number=then you add or subtract your fractions=

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

It allows you to add and subtract the fractions with greater ease.