(2/4), (3/8), (5/16), (7/32), (11/64), how much, (17/256)....
(2/4)、(3/8)、(5/16)、(7/32)、(11/64)、多少、(17/256)…．
<gadget id="calculator">64 * 2</gadget>
<output>128</output>

<gadget id="calculator">13 / 128</gadget>
<output>13/128 = around 0.101562</output>

<result>13/128 = around 0.101562</result>