Tap the blue circles to see an explanation.
| $$ \begin{aligned}\frac{284928}{1000000}x+\frac{310407}{1000000}y+404666\frac{z}{1000000}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}\frac{ 284928 : \color{orangered}{ 64 } }{ 1000000 : \color{orangered}{ 64 }} \cdot x + \frac{310407y}{1000000} + \frac{404666z}{1000000} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle4}{\textcircled {4}} \htmlClass{explanationCircle explanationCircle5}{\textcircled {5}} } }}}\frac{4452}{15625}x+\frac{310407y}{1000000}+\frac{404666z}{1000000} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle6}{\textcircled {6}} \htmlClass{explanationCircle explanationCircle7}{\textcircled {7}} \htmlClass{explanationCircle explanationCircle8}{\textcircled {8}} } }}}\frac{4452x}{15625}+\frac{310407y}{1000000}+\frac{404666z}{1000000} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle9}{\textcircled {9}} \htmlClass{explanationCircle explanationCircle10}{\textcircled {10}} } }}}\frac{284928x+310407y}{1000000}+\frac{404666z}{1000000} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle11}{\textcircled {11}} } }}}\frac{284928x+310407y+404666z}{1000000}\end{aligned} $$ | |
| ① | Divide both the top and bottom numbers by $ \color{orangered}{ 64 } $. |
| ② | Multiply $ \dfrac{310407}{1000000} $ by $ y $ to get $ \dfrac{ 310407y }{ 1000000 } $. Step 1: Write $ y $ as a fraction by putting $ \color{red}{ 1 } $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} \frac{310407}{1000000} \cdot y & \xlongequal{\text{Step 1}} \frac{310407}{1000000} \cdot \frac{y}{\color{red}{1}} \xlongequal{\text{Step 2}} \frac{ 310407 \cdot y }{ 1000000 \cdot 1 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 310407y }{ 1000000 } \end{aligned} $$ |
| ③ | Multiply $404666$ by $ \dfrac{z}{1000000} $ to get $ \dfrac{ 404666z }{ 1000000 } $. Step 1: Write $ 404666 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 404666 \cdot \frac{z}{1000000} & \xlongequal{\text{Step 1}} \frac{404666}{\color{red}{1}} \cdot \frac{z}{1000000} \xlongequal{\text{Step 2}} \frac{ 404666 \cdot z }{ 1 \cdot 1000000 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 404666z }{ 1000000 } \end{aligned} $$ |
| ④ | Multiply $ \dfrac{310407}{1000000} $ by $ y $ to get $ \dfrac{ 310407y }{ 1000000 } $. Step 1: Write $ y $ as a fraction by putting $ \color{red}{ 1 } $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} \frac{310407}{1000000} \cdot y & \xlongequal{\text{Step 1}} \frac{310407}{1000000} \cdot \frac{y}{\color{red}{1}} \xlongequal{\text{Step 2}} \frac{ 310407 \cdot y }{ 1000000 \cdot 1 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 310407y }{ 1000000 } \end{aligned} $$ |
| ⑤ | Multiply $404666$ by $ \dfrac{z}{1000000} $ to get $ \dfrac{ 404666z }{ 1000000 } $. Step 1: Write $ 404666 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 404666 \cdot \frac{z}{1000000} & \xlongequal{\text{Step 1}} \frac{404666}{\color{red}{1}} \cdot \frac{z}{1000000} \xlongequal{\text{Step 2}} \frac{ 404666 \cdot z }{ 1 \cdot 1000000 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 404666z }{ 1000000 } \end{aligned} $$ |
| ⑥ | Multiply $ \dfrac{4452}{15625} $ by $ x $ to get $ \dfrac{ 4452x }{ 15625 } $. Step 1: Write $ x $ as a fraction by putting $ \color{red}{ 1 } $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} \frac{4452}{15625} \cdot x & \xlongequal{\text{Step 1}} \frac{4452}{15625} \cdot \frac{x}{\color{red}{1}} \xlongequal{\text{Step 2}} \frac{ 4452 \cdot x }{ 15625 \cdot 1 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 4452x }{ 15625 } \end{aligned} $$ |
| ⑦ | Multiply $ \dfrac{310407}{1000000} $ by $ y $ to get $ \dfrac{ 310407y }{ 1000000 } $. Step 1: Write $ y $ as a fraction by putting $ \color{red}{ 1 } $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} \frac{310407}{1000000} \cdot y & \xlongequal{\text{Step 1}} \frac{310407}{1000000} \cdot \frac{y}{\color{red}{1}} \xlongequal{\text{Step 2}} \frac{ 310407 \cdot y }{ 1000000 \cdot 1 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 310407y }{ 1000000 } \end{aligned} $$ |
| ⑧ | Multiply $404666$ by $ \dfrac{z}{1000000} $ to get $ \dfrac{ 404666z }{ 1000000 } $. Step 1: Write $ 404666 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 404666 \cdot \frac{z}{1000000} & \xlongequal{\text{Step 1}} \frac{404666}{\color{red}{1}} \cdot \frac{z}{1000000} \xlongequal{\text{Step 2}} \frac{ 404666 \cdot z }{ 1 \cdot 1000000 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 404666z }{ 1000000 } \end{aligned} $$ |
| ⑨ | Add $ \dfrac{4452x}{15625} $ and $ \dfrac{310407y}{1000000} $ to get $ \dfrac{ \color{purple}{ 284928x+310407y } }{ 1000000 }$. To add raitonal expressions, both fractions must have the same denominator. |
| ⑩ | Multiply $404666$ by $ \dfrac{z}{1000000} $ to get $ \dfrac{ 404666z }{ 1000000 } $. Step 1: Write $ 404666 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 404666 \cdot \frac{z}{1000000} & \xlongequal{\text{Step 1}} \frac{404666}{\color{red}{1}} \cdot \frac{z}{1000000} \xlongequal{\text{Step 2}} \frac{ 404666 \cdot z }{ 1 \cdot 1000000 } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 404666z }{ 1000000 } \end{aligned} $$ |
| ⑪ | Add $ \dfrac{284928x+310407y}{1000000} $ and $ \dfrac{404666z}{1000000} $ to get $ \dfrac{ 284928x+310407y + 404666z }{ \color{blue}{ 1000000 }}$. To add expressions with the same denominators, we add the numerators and write the result over the common denominator. $$ \begin{aligned} \frac{284928x+310407y}{1000000} + \frac{404666z}{1000000} & = \frac{284928x+310407y}{\color{blue}{1000000}} + \frac{404666z}{\color{blue}{1000000}} = \\[1ex] &=\frac{ 284928x+310407y + 404666z }{ \color{blue}{ 1000000 }} \end{aligned} $$ |