How much is 5 meters (2/5) equal to 10 meters?
5米的(2/5)与10米的多少相等．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) / 10</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">5 * (1/25)</gadget>
<output>1/5 = around 0.2</output>

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