If x: a=b: 3, and a, b are reciprocals of each other, then x=how much.
如果x：a=b：3，且a，b互为倒数，则x=多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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