What is the difference between 7 times 3.5 and (7/10)?
7乘3.5与(7/10)的差，结果是多少？
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">3.5 - (7/10)</gadget>
<output>2.8</output>

<gadget id="calculator">7 * 2.8</gadget>
<output>19.6</output>

<result>19.6</result>