(2/3) of a number is (1/4), what is (4/9) of this number.
一个数的(2/3)是(1/4)，这个数的(4/9)是多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(1/4) / (2/3)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(3/8) * (4/9)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>