There are 75 poplars, and there are more willows than poplars (1/5). How many willow trees are there?
杨树有75棵，柳树比杨树多(1/5)．柳树有多少棵？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">75 * (1/5)</gadget>
<output>15</output>

<gadget id="calculator">15 + 75</gadget>
<output>90</output>

<result>90</result>