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