What is 7 (1/10) plus 2 (1/10)?
7个(1/10)加上2个(1/10)是多少．
<gadget id="calculator">7 + 2</gadget>
<output>9</output>

<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>