(3/4) of a number is (9/20), what is (5/12) of this number.
一个数的(3/4)是(9/20)，这个数的(5/12)是多少．
<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(9/20) / (3/4)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(3/5) * (5/12)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>