3*(1/4)-0.5*0.25+0.3/(4/5)=how much.
3*(1/4)-0.5*0.25+0.3/(4/5)=多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 * (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">0.5 * 0.25</gadget>
<output>0.125</output>

<gadget id="calculator">(3/4) - 0.125</gadget>
<output>0.625</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">0.3 / (4/5)</gadget>
<output>0.375</output>

<gadget id="calculator">0.625 + 0.375</gadget>
<output>1</output>

<result>1</result>