If the number A is 5 times the number B, then the number B is the number A.
甲数是乙数的5倍，那么乙数是甲数的多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>