The ostrich is the largest bird in the world. It runs about 72 kilometers per hour. The speed of the African wild dog is slower than that of the ostrich (2/9). How many kilometers per hour can African wild dogs run?
鸵鸟是世界上最大的鸟，它每约跑72千米，非洲野狗的时速比鸵鸟慢(2/9)．非洲野狗每小时能跑多少千米？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">72 * (2/9)</gadget>
<output>16</output>

<gadget id="calculator">72 - 16</gadget>
<output>56</output>

<result>56</result>