Question
Answer
$$105\cdot\dfrac{x}{70x^2}=\dfrac{105x}{70x^2}$$
Explanation
| $$ \begin{aligned}105 \cdot \frac{x}{70x^2}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{105x}{70x^2}\end{aligned} $$ | |
| ① | Multiply $105$ by $ \dfrac{x}{70x^2} $ to get $ \dfrac{ 105x }{ 70x^2 } $. Step 1: Write $ 105 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 105 \cdot \frac{x}{70x^2} & \xlongequal{\text{Step 1}} \frac{105}{\color{red}{1}} \cdot \frac{x}{70x^2} \xlongequal{\text{Step 2}} \frac{ 105 \cdot x }{ 1 \cdot 70x^2 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 105x }{ 70x^2 } \end{aligned} $$ |
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Simplify Rational Expressions