(3/5) of a number is (9/20), what is (5/6) of this number.
一个数的(3/5)是(9/20)，这个数的(5/6)是多少．
<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(9/20) / (3/5)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(3/4) * (5/6)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>