Answer
$$5\cdot\frac{a}{15}=\frac{5a}{15}$$
Explanation
| $$ \begin{aligned}5 \cdot \frac{a}{15}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{5a}{15}\end{aligned} $$ | |
| ① | Multiply $5$ by $ \dfrac{a}{15} $ to get $ \dfrac{ 5a }{ 15 } $. Step 1: Write $ 5 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 5 \cdot \frac{a}{15} & \xlongequal{\text{Step 1}} \frac{5}{\color{red}{1}} \cdot \frac{a}{15} \xlongequal{\text{Step 2}} \frac{ 5 \cdot a }{ 1 \cdot 15 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 5a }{ 15 } \end{aligned} $$ |
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Simplify Rational Expressions