A bag of rice weighs 30 kilograms, eat (5/6), how many kilograms are left?
一袋大米重30千克，吃了(5/6)，剩下多少千克？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">30 * (1/6)</gadget>
<output>5</output>

<result>5</result>