A set of gears meshing with each other. The small gear has 32 teeth, which is 2/5 of the large gear. How many teeth are there in the large gear?
一组互相咬合的齿轮，小齿轮有32个齿，是大齿轮的(2/5)，大齿轮有多少个．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">32 / (2/5)</gadget>
<output>80</output>

<result>80</result>