There are 28 girls in Class 1, which is 4/5 of the number of boys. How many people are there in the class?
六1班女生有28人，是男生人数的(4/5)，全班有多少人？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">28 / (4/5)</gadget>
<output>35</output>

<gadget id="calculator">35 + 28</gadget>
<output>63</output>

<result>63</result>