A number is 2.4 more than (2/3) of 15. What is this number?
一个数比15的(2/3)多2.4，这个数是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">15 * (2/3)</gadget>
<output>10</output>

<gadget id="calculator">10 + 2.4</gadget>
<output>12.4</output>

<result>12.4</result>