<p>Solve The flollowing questions.</p>
<div>&nbsp; &nbsp; &nbsp; &nbsp;<span class="math-editor mathquill-rendered-math"><span class="non-leaf"><span class="scaled paren" style="transform: scale(1, 1.05);">(</span><span class="non-leaf"><var>i</var></span><span class="scaled paren" style="transform: scale(1, 1.05);">)</span></span><span class="fraction non-leaf"><span class="numerator">5</span><span class="denominator">12</span><span style="display: inline-block; width: 0;">&nbsp;</span></span><span class="binary-operator">+</span><span class="fraction non-leaf"><span class="numerator">7</span><span class="denominator">12</span><span style="display: inline-block; width: 0;">&nbsp;</span></span><span class="non-leaf"><span class="scaled paren" style="transform: scale(1, 1.05);">(</span><span class="non-leaf"><var>i</var><var>i</var></span><span class="scaled paren" style="transform: scale(1, 1.05);">)</span></span><span class="fraction non-leaf"><span class="numerator">7</span><span class="denominator">8</span><span style="display: inline-block; width: 0;">&nbsp;</span></span><span class="binary-operator">&minus;</span><span class="fraction non-leaf"><span class="numerator">5</span><span class="denominator">8</span><span style="display: inline-block; width: 0;">&nbsp;</span></span></span>&nbsp;</div>