How much is the reciprocal of 2.5 more than 2 (1/8).
2.5的倒数比2个(1/8)多多少．
<gadget id="calculator">1 / 2.5</gadget>
<output>0.4</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 2</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">0.4 - (1/4)</gadget>
<output>0.15</output>

<gadget id="calculator">0.15 / (1/4)</gadget>
<output>0.6</output>

<result>0.6</result>