What is (5/9) of (3/20)?
(3/20)的(5/9)是多少．
<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(3/20) * (5/9)</gadget>
<output>1/12 = around 0.083333</output>

<result>1/12 = around 0.083333</result>