Question Video: Adding Fractions with Unlike Denominators Mathematics • 7th Grade

Video Transcript

Evaluate negative one-third plus two-thirds giving the answer in its simplest form.

In order to add or subtract fractions, we need to ensure that there’s a common denominator. In this case, the denominator of both fractions is three. As the denominator is the same in both of the fractions, we need to add the numerators: negative one plus two. Negative one plus two is equal to positive one. Therefore, our answer is one-third.

Negative one-third plus two-thirds is equal to one-third.