Wushan Farm planted 150 hectares of wheat last year, an increase of 15% this year compared to last year. How many hectares of wheat are planted this year?
吴山农场去年种小麦150公顷，今年比去年增加了15%，今年种小麦多少公顷？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">150 * (23/20)</gadget>
<output>345/2 = around 172.5</output>

<result>345/2 = around 172.5</result>