The average height of the fifth grade students in a certain elementary school is 153.8 cm. Among them, there are 45 boys with an average height of 150.4 cm, and 40 girls. What is the average height in cm?
某小学五年级学生平均身高153.8厘米，其中男生45人，平均身高150.4厘米，女生有40人，平均身高多少厘米厘米．
<gadget id="calculator">45 + 40</gadget>
<output>85</output>

<gadget id="calculator">153.8 * 85</gadget>
<output>13_073</output>

<gadget id="calculator">150.4 * 45</gadget>
<output>6_768</output>

<gadget id="calculator">13_073 - 6_768</gadget>
<output>6_305</output>

<gadget id="calculator">6_305 / 40</gadget>
<output>1_261/8 = around 157.625</output>

<result>1_261/8 = around 157.625</result>