There is a set of gears meshing with each other. The small gear has 25 teeth, which is 1/6 of the large gear. How many teeth does the large gear have? ?
有一组互相咬合的齿轮，小齿轮有25个齿，是大齿轮的(1/6)，大齿轮有多少个齿？？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">25 / (1/6)</gadget>
<output>150</output>

<result>150</result>