Calculate 15-3*(1/3)/(1/3)*3=how much.
计算15-3*(1/3)/(1/3)*3=多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) / (1/3)</gadget>
<output>1</output>

<gadget id="calculator">3 * 1 * 3</gadget>
<output>9</output>

<gadget id="calculator">15 - 9</gadget>
<output>6</output>

<result>6</result>