3 yuan and 8 corners = how many yuan.
3元8角=多少元．
<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 + (4/5)</gadget>
<output>19/5 = around 3.8</output>

<result>19/5 = around 3.8</result>