"A novel has 240 pages in total. Zhao Qiang read the whole book (1/10) on the first day and the rest (1/8) on the second day. How many pages did he read in total?" Xiao Ming understood the question The listed formula is "240*((1/10)+(1/8))=54(page)" is wrong. Please write down the reason for the error first, and then list the correct formula.
"一本小说共有240页，赵强第一天读了全书的(1/10)，第二天读了余下的(1/8)，两天共读了多少页？"小明理解这道题时列出的算式是"240*((1/10)+(1/8))=54(页)"是错误的．请你先写出错误原因，再列出正确算式．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">240 * (1/10)</gadget>
<output>24</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">240 * (9/10) * (1/8)</gadget>
<output>27</output>

<gadget id="calculator">24 + 27</gadget>
<output>51</output>

<result>51</result>