There are 46 students in the sixth grade of Dongxiao Primary School who are short-sighted, an increase of 15% compared with last year. How many students were near-sighted last year?
东晓小学六年级同学眼睛近视的有46人，比去年增加一成五，去年近视的同学有多少人？
<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">46 / (23/20)</gadget>
<output>40</output>

<result>40</result>