If Xiaojie is 150 cm tall and Xiaoli is shorter (1/30) than Xiaojie, what is Xiaoli's height?
如果小杰身高150厘米，小丽比小杰矮(1/30)，那么小丽身高为多少．
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">1 - (1/30)</gadget>
<output>29/30 = around 0.966667</output>

<gadget id="calculator">150 * (29/30)</gadget>
<output>145</output>

<result>145</result>