Solve the equation: (5/12): x=0.2: (9/20).
解方程：(5/12)：x=0.2：(9/20)．
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(5/12) * (9/20)</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">(3/16) / 0.2</gadget>
<output>0.9375</output>

<result>0.9375</result>