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You must find a common denominator. You figure out the smallest number that all of your denominators are divisible by. If you have to multiply the denominators by 2, you must multiply the numerators by 2, then add the numerators together, and write above the common denominator. If you have to multiply one denominator to equal the other denominator, then you must multiply the numerator above that denominator, and finally add up the numerators and place above the common denominator. Then reduce the answer to its smallest fraction.
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When you add fractions do you add the denominator to?
No.
When you add fractions do they have to have the same denominator?
Yes you have to add with the same denominator. when ever you do fractions they have to have the same denominator no matter what. So thats a yes
How do you add fractions with same numerator?
if it has a denominator
Why do you need a common denominator with fractions?
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.
How do I add improper fractions?
Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.
