A number is 6 (2/15), what is this number?
一个数是6的(2/15)，这个数是多少．
<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">6 * (2/15)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>