Put a pot of flowers every 10 meters around the circular runway with a circumference of 400 meters, and then put a pot of flowers every 8 meters after that, and no longer put flowers in the place where the flowers were originally placed. How many pots of flowers are placed in total?
在周长为400米的环形跑道周围每隔10米放一盆花，放完后又每隔8米放个一盆花，原来放花的地方不再放花，一共放了多少盆花．
<gadget id="calculator">400 / 8</gadget>
<output>50</output>

<gadget id="calculator">400 / 10</gadget>
<output>40</output>

<gadget id="calculator">50 + 40</gadget>
<output>90</output>

<gadget id="calculator">90 - 10</gadget>
<output>80</output>

<result>80</result>