Last year Xiaodong and Xiaoli were the same height, this year Xiaodong grew 15cm, Xiaoli grew 7cm, now Xiaodong is taller than Xiaoli (1/20). How tall is Xiaoli in centimeters this year?
去年小东和小丽还一样高，今年小东长了15厘米，小丽长了7厘米，现在小东比小丽高(1/20)．今年小丽身高多少厘米．
<gadget id="calculator">15 - 7</gadget>
<output>8</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">8 / (1/20)</gadget>
<output>160</output>

<result>160</result>