(3.9+7.75-9.375)/(0.4875-0.4)=how much.
(3.9+7.75-9.375)/(0.4875-0.4)=多少．
<gadget id="calculator">7.75 - 9.375</gadget>
<output>-1.625</output>

<gadget id="calculator">3.9 + (-1.625)</gadget>
<output>2.275</output>

<gadget id="calculator">0.4875 - 0.4</gadget>
<output>0.0875</output>

<gadget id="calculator">2.275 / 0.0875</gadget>
<output>26</output>

<result>26</result>