Li Village produced 40 tons of grain last year, and this year it has increased by 15% compared to last year. How many tons of grain will it produce this year?
李村去年产粮食40吨，今年比去年增产一成五，今年产粮食多少吨？
<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">40 * (23/20)</gadget>
<output>46</output>

<result>46</result>