There are 22 girls in Class 1, and girls account for 2/5 of the whole class. How many boys are there in Class 1?
六1班有女生22人，女生占全班人数的(2/5)，六1班有男生多少人．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">22 / (2/5)</gadget>
<output>55</output>

<gadget id="calculator">55 - 22</gadget>
<output>33</output>

<result>33</result>