What is the form of writing the product of 5.{_{4}**(.)}2{_{5}**(.)}*0.63 as a decimal.
将5.{_{4}**(．)}2{_{5}**(．)}*0.63的积写成小数的形式是多少．
<gadget id="calculator">5 * 0.63</gadget>
<output>3.15</output>

<gadget id="calculator">425 / 999</gadget>
<output>425/999 = around 0.425425</output>

<gadget id="calculator">0.63 * (425/999)</gadget>
<output>0.268018</output>

<gadget id="calculator">3.15 + 0.268018</gadget>
<output>3.418018</output>

<result>3.418018</result>