What is (2/15) of (9/10)?
(9/10)的(2/15)是多少．
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(9/10) * (2/15)</gadget>
<output>3/25 = around 0.12</output>

<result>3/25 = around 0.12</result>