102 kilograms of salt, use up (1/6), how many kilograms are left.
102千克盐，用去(1/6)，还剩多少千克．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">102 * (5/6)</gadget>
<output>85</output>

<result>85</result>