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<meta http-equiv="content-type" content="text_en.html; charset=utf-8">
<title>JFractionLab Help</title>
</head>
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<h1>JFractionLab - Help</h1>
<!-- Titel of Chapter-->
<h2>Adding fractions</h2>
<!-- Content of Chapter -->
<h3>Explanation:</h3>
<table>
<tr>
<td><IMG src="add-pizzas/1o4-plus-1o8.png" width="216" height="90" align="left" border="0"></td>
<td>What do you get? ... Mmmh ...<br>
A large piece and a small piece? .... Mmmh ...
</td>
</tr>
<tr>
<td><IMG src="add-pizzas/2o8-plus-1o8.png" width="214" height="91" align="left" border="0"></td>
<td>Here it is easy. The result is "three pieces"!</td>
</tr>
</table>
We can only add pieces together, that are the same size.<br>
<br>
So, first we have to find a common denominator and convert all fractions.</br>
<br>
<hr><!-- ################################# -->
<h3>Steps:</h3>
<ul>
<li>find the common denominator</li>
<li>convert the fractions to the common denominator</li>
<li>add the numerators</li>
<li>if necessary reduce them</li>
<li>if necessary change the improper fraction into whole numbers</li>
</ul>
<hr><!-- ################################# -->
<h3>A step by step example:</h3>
<table>
<tr>
<td><img src="add-formulas/addition-step-1.png"></td>
<td>These fractions don't have a common denominator, so to add them, we will first have to find a common denominator.<br>
</td>
</tr>
<tr>
<td><img src="add-formulas/addition-step-2.png"></td>
<td>Here you can see, how we have done this..</td>
</tr>
<tr>
<td><img src="add-formulas/addition-step-3.png"></td>
<td>This is the result you get.</td>
</tr>
<tr>
<td><img src="add-formulas/addition-step-4.png"></td>
<td>We can now add these two fractions together.<br>
</td>
</tr>
<tr>
<td><img src="add-formulas/addition-step-5.png"></td>
<td>What we have to do now is change this improper fraction into a mixed number.<br>
</td>
</tr>
<tr>
<td><img src="add-formulas/addition-step-6.png"></td>
<td></td>
</tr>
<tr>
<td><img src="add-formulas/addition-step-7.png"></td>
<td></td>
</tr>
</table>
This is what it would look like in the JFractionLab.<br>
<IMG src="screenshots/screenshot_3o4-plus-2o5.png" border="1">
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