How many minutes is (3/4) of 1 hour; ((())/(())) of 1 kilometer is 50 meters.
1小时的(3/4)是多少分钟；1千米的((())/(()))是50米．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 * 60 * (3/4)</gadget>
<output>45</output>

<result>45</result>