How many (4/5) of 20 is 48?
20的(4/5)是48的多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 48</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">20 * (1/60)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>