A rope is 3 meters long, and the package is used (143/150), how many centimeters are left.
一根绳子长3米，包装用去(143/150)，还剩多少厘米．
<gadget id="calculator">7 / 50</gadget>
<output>7/50 = around 0.14</output>

<gadget id="calculator">(7/50) * 100</gadget>
<output>14</output>

<result>14</result>