If the number A is 3 times the number B, then the number B is the number A.
如果甲数是乙数的3倍，那么乙数就是甲数的多少．
<gadget id="calculator">1 * 3</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>