How many tons are 72 tons reduced by (1/6).
72吨减少(1/6)后是多少吨．
<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">72 * (5/6)</gadget>
<output>60</output>

<result>60</result>