60% of 4 is equal to 12.
4的60%与12的多少相等．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) / 12</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">4 * (1/20)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>