Question
Answer
$$\dfrac{70}{\sqrt{1225}}=2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}\frac{70}{\sqrt{1225}}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{70}{35} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}} \frac{ 70 : \color{orangered}{ 35 } }{ 35 : \color{orangered}{ 35 }} \xlongequal{ } \\[1 em] & \xlongequal{ }\frac{2}{1} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}2\end{aligned} $$ | |
| ① | The square root of $ 1225 $ is $ 35 $. |
| ② | Divide both the top and bottom numbers by $ \color{orangered}{ 35 } $. |
| ③ | Remove 1 from denominator. |
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