Question
Answer
$$63\cdot\dfrac{x}{45n^2}=\dfrac{63x}{45n^2}$$
Explanation
| $$ \begin{aligned}63 \cdot \frac{x}{45n^2}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{63x}{45n^2}\end{aligned} $$ | |
| ① | Multiply $63$ by $ \dfrac{x}{45n^2} $ to get $ \dfrac{ 63x }{ 45n^2 } $. Step 1: Write $ 63 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 63 \cdot \frac{x}{45n^2} & \xlongequal{\text{Step 1}} \frac{63}{\color{red}{1}} \cdot \frac{x}{45n^2} \xlongequal{\text{Step 2}} \frac{ 63 \cdot x }{ 1 \cdot 45n^2 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 63x }{ 45n^2 } \end{aligned} $$ |
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Simplify Rational Expressions