Question
Answer
$$\dfrac{11}{\sqrt{121}}=1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}\frac{11}{\sqrt{121}}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{11}{11} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}} \frac{ 11 : \color{orangered}{ 11 } }{ 11 : \color{orangered}{ 11 }} \xlongequal{ } \\[1 em] & \xlongequal{ }\frac{1}{1} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}1\end{aligned} $$ | |
| ① | The square root of $ 121 $ is $ 11 $. |
| ② | Divide both the top and bottom numbers by $ \color{orangered}{ 11 } $. |
| ③ | Remove 1 from denominator. |
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