1 files changed, 35 insertions, 47 deletions
diff --git a/files/ja/web/javascript/reference/operators/division/index.md b/files/ja/web/javascript/reference/operators/division/index.md
index 3db6a5715d..d244af46b1 100644
--- a/files/ja/web/javascript/reference/operators/division/index.md
+++ b/files/ja/web/javascript/reference/operators/division/index.md
@@ -3,74 +3,62 @@ title: 除算 (/)
 slug: Web/JavaScript/Reference/Operators/Division
 tags:
   - JavaScript
-  - Language feature
-  - Operator
+  - 言語機能
+  - 演算子
   - Reference
+browser-compat: javascript.operators.division
 translation_of: Web/JavaScript/Reference/Operators/Division
 ---
-<div>{{jsSidebar("Operators")}}</div>
+{{jsSidebar("Operators")}}
 
-<p>除算演算子 (<code>/</code>) は、左のオペランドを被除数とし右のオペランドを除数としたオペランド同士の商を生成します。</p>
+除算演算子 (`/`) は、左のオペランドを被除数とし、右のオペランドを除数としたオペランド同士の除算結果を生成します。
 
-<div>{{EmbedInteractiveExample("pages/js/expressions-division.html")}}</div>
+{{EmbedInteractiveExample("pages/js/expressions-division.html")}}
 
-<div></div>
+## 構文
 
+```js
+x / y
+```
 
+## 例
 
-<h2 id="構文">構文</h2>
+### 基本的な除算
 
-<pre class="syntaxbox notranslate"><strong>Operator:</strong> <var>x</var> / <var>y</var>
-</pre>
-
-<h2 id="例">例</h2>
-
-<h3 id="基本の除算">基本の除算</h3>
-
-<pre class="brush: js notranslate">1 / 2              // 0.5
+```js
+1 / 2              // 0.5
 
 Math.floor(3 / 2) // 1
 
 1.0 / 2.0         // 0.5
-</pre>
-
-<h3 id="ゼロ除算">ゼロ除算</h3>
-
-<pre class="brush: js notranslate">2.0 / 0     // Infinity
+```
 
-2.0 / 0.0   // Infinity, because 0.0 === 0
+### ゼロ除算
 
-2.0 / -0.0  // -Infinity</pre>
+```js
+2.0 / 0     // Infinity
 
-<h2 id="仕様">仕様</h2>
+2.0 / 0.0   // Infinity。 0.0 === 0 であるため
 
-<table class="standard-table">
- <tbody>
-  <tr>
-   <th scope="col">仕様</th>
-  </tr>
-  <tr>
-   <td>{{SpecName('ESDraft', '#sec-multiplicative-operators', 'Division operator')}}</td>
-  </tr>
- </tbody>
-</table>
+2.0 / -0.0  // -Infinity
+```
 
-<h2 id="ブラウザーの互換性">ブラウザーの互換性</h2>
+## 仕様書
 
+{{Specifications}}
 
+## ブラウザーの互換性
 
-<p>{{Compat("javascript.operators.division")}}</p>
+{{Compat}}
 
-<h2 id="関連項目">関連項目</h2>
+## 関連情報
 
-<ul>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Addition">加算演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Subtraction">減算演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Multiplication">乗算演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Remainder">剰余演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Exponentiation">べき乗演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Increment">インクリメント演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Decrement">デクリメント演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Unary_negation">単項マイナス演算子</a></li>
- <li><a href="/ja/docs/Web/JavaScript/Reference/Operators/Unary_plus">単項プラス演算子</a></li>
-</ul>
+- [加算演算子](/ja/docs/Web/JavaScript/Reference/Operators/Addition)
+- [減算演算子](/ja/docs/Web/JavaScript/Reference/Operators/Subtraction)
+- [乗算演算子](/ja/docs/Web/JavaScript/Reference/Operators/Multiplication)
+- [剰余演算子](/ja/docs/Web/JavaScript/Reference/Operators/Remainder)
+- [べき乗演算子](/ja/docs/Web/JavaScript/Reference/Operators/Exponentiation)
+- [インクリメント演算子](/ja/docs/Web/JavaScript/Reference/Operators/Increment)
+- [デクリメント演算子](/ja/docs/Web/JavaScript/Reference/Operators/Decrement)
+- [単項マイナス演算子](/ja/docs/Web/JavaScript/Reference/Operators/Unary_negation)
+- [単項プラス演算子](/ja/docs/Web/JavaScript/Reference/Operators/Unary_plus)