Answer
$$-\frac{8}{15}+\frac{4}{15}=-\frac{4}{15}$$
Explanation
| $$ \begin{aligned}-\frac{8}{15}+\frac{4}{15}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-\frac{4}{15}\end{aligned} $$ | |
| ① | Add $ \dfrac{-8}{15} $ and $ \dfrac{4}{15} $ to get $ \dfrac{-4}{15} $. To add expressions with the same denominators, we add the numerators and write the result over the common denominator. $$ \begin{aligned} \frac{-8}{15} + \frac{4}{15} & = \frac{-8}{\color{blue}{15}} + \frac{4}{\color{blue}{15}} =\frac{ -8 + 4 }{ \color{blue}{ 15 }} = \\[1ex] &= \frac{-4}{15} \end{aligned} $$ |
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Simplify Rational Expressions