rong>d)</strong></small><small> <span class="inline_math">\( \frac{1}{2}\ln(e^{22}) \)</span>
</small></div>
</div>



<div class="miniref-problem" data-number="1.5"><span class="problem number">P1.5 </span>
Compute the following expressions involving fractions:
<div class="multicols"><small><strong>a)</strong></small><small> <span class="inline_math">\( \dfrac{1}{2} + \dfrac{1}{4} \)</span>
</small>
<small><strong>b)</strong></small><small> <span class="inline_math">\( \dfrac{4}{7} - \dfrac{23}{5} \)</s