One side of the road used to be installed with a wooden pole every 14 meters, and a total of 56 poles were installed. Now it is replaced with a concrete pole, and it is enough to install one every 35 meters.
马路的一边原来每隔14米装一支木电杆，共装了56支，现在换成水泥电杆，每隔35米装一根即可，只装多少根就行．
<gadget id="calculator">56 - 1</gadget>
<output>55</output>

<gadget id="calculator">55 / 35</gadget>
<output>11/7 = around 1.571429</output>

<gadget id="calculator">14 * (11/7)</gadget>
<output>22</output>

<gadget id="calculator">22 + 1</gadget>
<output>23</output>

<result>23</result>